18 Badass Japanese Slang Words to Impress Your Friends (2022)

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You don’t learn slang words from your average teacher – and it’s likely you won’t hear Japanese slang outside of Japan! (Unless you have Japanese friends of course!)

In my humble opinion, Japanese has way cooler slang than English because it has an expressive ring to it which makes you sound more fluent.

Being able to use slang injects some humour into your conversations and helps you connect with friends in a more natural way.

That being said, there is still social etiquette around using slang words in Japanese. It’d be best to avoid them in a professional setting (unless you’re chatting to a close colleague) and don’t use slang towards people older than you or of a superior position at work.

Japanese slang can be offensive but there are many words which are perfectly normal ways of expressing yourself in daily conversation.

Most native speakers will be able to empathise with the sentiment behind these 18 Japanese slang words!

Table Of Contents

  1. Yabai
  2. Maji de
  3. Meccha (Meccha kuccha)
  4. Chou
  5. Uso
  6. Kimoi
  7. Ukeru
  8. Saitei
  9. Uzai
  10. Bimyou
  11. Ikemen
  12. Oshare
  13. Dasai
  14. Mukatsuku
  15. Zurui
  16. Sore na!
  17. Muzui
  18. Baka

Yabai

やばい

Woah!

18 Badass Japanese Slang Words to Impress Your Friends (1)

Yabai is a slang word used for reacting to something which surprises or shocks you like ‘woah!’ or ‘OMG’ in English.

The dictionary definition of yabai is ‘dangerous’ or ‘risky’ but as a slang it’s an interjection to show you find something terrible or unbelievable in a bad way or impressive, cool or extraordinary.

As we know, Japan loves ambiguity so you need to rely more on the context to understand what someone means when they say yabai!

Let’s say you were watching a documentary about skydiving with some friends and a video of a person jumping out of a plane comes up on the screen.

In this situation, someone might say やばい!(yabai!). Depending on how the person feels about skydiving, it could mean they are shocked at how daring and dangerous it is, like ‘what the’ or ‘that’s crazy’ or it could express awe, as in ‘Wow!’ Or ‘Cool!’.

Yabai is also used to show disapproval of something.

For example, if someone told you about a political or workplace scandal, you could say mou yabai yo… / ‘もうやばいよ…’ to say ‘that’s so bad…’.

Yabai is often shortened to yaba (やばー!)when used by males and can be used with -kunai, the negative form for Japanese i-adjectives:

Sore wa yabakunai?!
それはやばくない?!
Isn’t that terrible? / Isn’t that like… really bad?

Maji de

マジで

Seriously?! / No way

18 Badass Japanese Slang Words to Impress Your Friends (2)

Maji de comes from the word majime (真面目 / まじめ) which means ‘sincere’, ‘honest’ and ‘truthful’.

If you take away the –me at the end of the word majime, you get maji and with the addition of the particle で (de) you have your Japanese slang word for ‘seriously’: maji de?! (マジで?!).

The cool thing about maji de is that it’s not only Japanese internet slang – it’s also used regularly in casual conversation too!

Just one thing to note when you type maji de using Japanese characters online – maji is usually written in katakana (マジ) and the particle de is written in hiragana (で)to make the phrase マジで.

A:
Kareshi ni tatuu ga haitteita!
彼氏にタトゥーが入っていた!
かれしにタトゥーがはいっていた!
My boyfriend got a tattoo!

B:
Maji de?
マジで?
Seriously?

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You often find maji de and the previous slang word, yabai, as a pair:

Maji de yabai!
マジでやばい!
(That is / It’s) Seriously bad / unbelievable!

Another variant of maji de is maji ka / マジか and it is more common among boys.

A:
Mbappe yori hayai senshu ga igirisu ni ita yo.
ムバッペより速い選手がイギリスにいたよ。

ムバッペより はやい せんしゅ が

イギリス に いた よ。
There was a player in England faster than Mbappe.

B:
Maji ka!
マジかー!
No way!

Meccha (Meccha kuccha)

めっちゃ (めっちゃくちゃ)

Really / Extremely / So

Meccha (めっちゃ)is slang for ‘very’ or ‘really’ and is used to express to a great extent how good or bad something was (though it’s normally used in a positive context!)

A popular phrase is meccha ii (めっちゃいい)which means ‘really good’. You can add kucha for even more emphasis as in meccha kucha ii or meccha kuccha ii yo! (めっちゃくちゃいいよ!)

Meccha is frequently used for expressing how delicious something tastes as in meccha oishii or meccha umai! (めっちゃ美味しい / めっちゃうまい).

You can use meccha with adjectives or adverbs to enhance your description of anything from a place or an experience:

Meccha hayai!
めっちゃ早い!
Soo fast!

Meccha kirei!
めっちゃ綺麗!
SO beautiful!

Just be careful not to overuse meccha because it can sound a bit immature or exaggerated.

As a slang word it’s informal so you can trade meccha for sugoku or totemo to sound more polite.

Chou

超 / ちょう

Totally / Absolutely

18 Badass Japanese Slang Words to Impress Your Friends (3)

Chou is almost identical to meccha except it’s used more by younger females.

You can use chou in the same way as meccha to intensify your description of something as in chou umai (so delicious) and chou sugoi (so cool!).

It sounds a little funny when chou comes from adults so just remember this is predominantly a young female slang word.

Ano usagi wa chou kawaii!
あのウサギは超可愛い!
あのうさぎはちょうかわいい!
That rabbit is so cute!

Uso

うそ!

You’re lying! / Don’t lie

Uso comes from the word usotsuki (嘘つき) meaning ‘liar’ and is used with だ as in uso da! / うそだ!to say ‘That’s a lie’ or ‘Don’t lie’.

It’s an expressive phrase used mostly by guys and shows great disbelief or refusal to accept what someone is saying.

A:
Kino joushi wa jinin shita.
昨日、上司は辞任した。
きのう、じょうしはじにんした。
Yesterday, the boss resigned.

B:
Uso da!
うそだ!
Don’t lie!

Kimoi

キモイ

Disgusting / Gross / Foul

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18 Badass Japanese Slang Words to Impress Your Friends (4)

Kimoi comes from the word kimochi warui (気持ち悪い / きもちわるい)which means ‘disgusting’ or ‘gross’.

Kimoi isn’t the most polite slang, but let’s be honest, for the under 20 crowd, there’s always a rude word to say how much you despise or dislike something!

Gokiburi wa kimoi yo ne!
ゴキブリはキモイよね!
Cockroaches are gross aren’t they?

Ukeru

ウケる

Hilarious / Epic

Ukeru is a verb that means ‘to take’ but when used as slang it’s always written in katakana and means ‘that’s hilarious’.

Sometimes people put the word maji (seriously) before ukeru to emphasise how funny it is by saying maji ukeru (マジウケル).

In internet slang, you can use it with wwww (slang for ‘lol’ in Japanese) when typing:

Maji ukeru wwww!
マジウケルwwww!
That’s hilarious lol!

Saitei

最低 / さいてい

The worst!

Saitei is slang for ‘the worst’ and is probably the most intense Japanese slang word on this list for expressing negative feelings about someone or something.

Saitei is made up of two kanji characters: sai (最) meaning ‘most’ and tei (程)meaning ‘low’ or ‘beneath’. So you get the meaning of ‘the lowest’ or ‘the worst’ with additional connotations like ‘disgusting’, ‘horrible’, and ‘yuck’.

Saitei can also be like saying something ‘sucks’.

As awful as it sounds, there are sometimes situations in life where you really need to express how bad something is and saitei is your word!

Kono eiga wa saitei dayo. Ie ni ireba yokatta.
この映画は最低だよ。家にいればよかった。
このえいがはさいていだよ。いえにいればよかった。
This movie sucks. I would have been better off staying home.

Doubutsu gyakutai wa saitei da yo ne.
動物虐待は最低だよね。
どうぶつぎゃくたいはさいていだよね。
Animal cruelty is the worst.

Uzai

うざい

Annoying

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Japanese makes complaining about someone or something convenient for you with one single word: uzai.

Uzai is short for urusai which means ‘annoying’, ‘loud’ or ‘noisy’ in Japanese and is used to describe anything whether it’s a person, situation or object.

Uzai is more common among high school students so try not to use it too much if you’re out of this age group.

Shukudai o misete to ittekuru hito ga uzai.
宿題を見せてと言ってくる人がうざい。
しゅくだいをみせてといってくるひとがうざい。
People that ask to copy your homework are annoying.

Uzai is pretty versatile. I remember walking through a subway station with a friend in Japan and there was a machine which looked like a generator making loud noises. My friend shouted ‘uzai na!’ to the machine!

Bimyou

微妙・ビミョー

Iffy / Not sure / Meh / Suss / Something’s fishy

Bimyou is a regular na-adjective which doubles as a slang word to describe a situation, person or thing that is that you’re indifferent to or weary of.

As you can tell from the English translation above, bimyou has a lot of uses but let’s look at the kanji characters to get a feeling for what it means.

The two kanji characters that make up bimyou are bi (微 / び) meaning ‘subtle’ or ‘slight’ and myou(妙 / みょう)which means ‘strange’, ‘queer’ or ‘not normal’’ in a more negative way.

As slang, bimyou is generally used to express that you think something is mediocre, with an emphasis on the negative.

For example:

A:
Ano resuto itta koto aru?
あのレスト行ったことある?
あの れすと いった こと ある?
Have you been to that restaurant?

B:
Un, tomodachi to issho ni itta.
うん、友達と一緒に行った.
うん、 ともだち と いっしょ に いった .
Yeah, I went with a friend.

A:
Dou?
どう?
How was it?

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B:
Uun, bimyou kana…
うーん、微妙かなぁ
Hmm, not that great.

As a na-adjective, bimyou means ‘slight’ or ‘a little bit’ in English.

For example you could use it to describe a subtle difference as in bimyouna chigai ( 微妙な違い / びみょうなちがい)or a delicate situation such as bimyouna mondai (微妙な問題).

Bimyou is also frequently used to express uncertainty or suspicion.

For example:

A:
Kasa motteitta houga ii to omou?
傘持って行ったほうがいいと思う?
かさもっていったほうがいいとおもう?
Do you think I should take an umbrella?

B:
Uun, ima wa mada futtenai kedo, bimyou yanaa.
うーん、今はまだ降ってないけど、微妙やなぁ
うーん、いまはまだふってないけど、びみょうやなぁ
Hmm, right now it’s not raining so it’s kind of hard to tell…

Ikemen

イケメン

Handsome (cool / attractive guy)

Ikemen refers to a guy who is cool, stylish and attractive.

Ikemen is divided into two parts, ike which comes from the verb ikeru / iketeru meaning to look cool or stylish (like kakkoii / カッコいい) and men which could either be referring to the English word men (as in guy) or the Japanese word for face which is men (面).

Someone described as ikemen is usually objectively good looking, stylish and suave. It’s synonymous with ‘handsome’, ‘hot guy’ or ‘cool guy’.

Ano kashu wa ikemen to omou?
あの歌手はイケメンだとおもう?
あのかしゅはいけめんだとおもう?
Do you think that singer is handsome?

おしゃれ

Stylish / Trendy / Cool

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Oshare is a nice word to compliment someone or something that is stylish, trendy or cool and when used towards a person, it’s like saying ‘you scrub up well!’ in Japanese.

Usually when someone says oshare, they are referring to clothing or anything relating to physical appearance (i.e. makeup, hairstyle, accessories).

However, oshare is also used to describe a ‘good taste’ or a ‘good sense’ for things like cars, furniture, restaurants, places or anything that exudes a cool, modern vibe (almost like the word chic in English).

Ginza de osharena kafe ga ooi desu ne.
銀座でおしゃれなカフェが多いですね。
ぎんざでおしゃれなカフェがおおいですね。
In Ginza, there are a lot of trendy cafes.

Dasai

ダサい

Not cool / outdated

Dasai is the opposite of oshare because it means something that is not cool or fashionable.

I like to think of dasai as an old dusty table cloth with a really bad colour scheme and an ugly pattern.

Like oshare, dasai refers to the appearance of someone or something but in a negative way.

Dasai is mostly used for fashion sense, places and possessions like cars or furniture.

Okaasan ga kattekita fuku wa itsumo dasai.
お母さんが買ってきた服はいつもダサい。
おかあさんがかってきたふくはいつもださい。
The clothes my mum buys for me are always unfashionable.

Mukatsuku

むかつく

Pissed off / Irritated / Angry

Mukatsuku comes from the word mukamuka suru (ムカムカする) which is a Japanese onomatopoeia phrase with two meanings: ‘to be extremely sick’ or ‘pissed off’, ‘angry’ or strongly irritated by something.

When used as slang, mukatsuku means you’re fed up with something.

Honto ni mukatsuku.
本当にムカつく。
ほんとにむかつく。
It really pisses me off.

Zurui

ずるい

Sly / Cunning / Sneaky

When someone does something that is so sneaky it’s almost unbelievable, you can use zurui as a way of expressing your disapproval with a hint of admiration for how they were able go through with the act.

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Zurui actually means ‘unfair’ so it’s more of a negative expression but the nuance is that you were also impressed by how someone managed to pull something off!

Zurui! Watashi no junban desho!
ずるい!私の順番でしょ!
ずるい!わたしのじゅんばんでしょ!
Unfair! It’s my turn!

Sore na!

それな!

That’s true! / That’s it!

Sore na is a way of showing agreement or empathy with what someone is saying, kind of like ‘that’s true’ or ‘you’re right’.

It’s the casual way of saying sou desu ne / そうですね and sonotori desu / その通りです and is used more often by teens.

You can also use it as a way of saying ‘yeah, yeah’ in response to someone like 「うん、うん」 in Japanese.

Lately, sore na is becoming more like ‘I know right?’ or IKR in internet slang. When writing sore na online, you can add the chou onpu sign (ー)to drag out the word for more emphasis as in それなー!(sore naa!)

A:
Yappari kono haiyuu, itsu mitemo kakkoii yo ne!
やっぱりこの俳優、いつ見てもカッコいいよね!
やっぱり この はいゆう、 いつ みて も かっこ いい よ ね!
This actor always looks cool!

B:
Sore naa!
それなー!
I know right!

Muzui

むずい

Difficult

Muzui is the young generation’s way of saying muzukashii which means ‘difficult’. It’s popular among high school students.

You can use it in the exact same way as muzukashii, and modify it’s ending using kunai, the negative form for Japanese i-adjectives as in:

難しくない?
Muzukashikunai?

>>
むずくない?
Muzukunai?

Remember, muzui is slang so only use it in informal settings!

Baka

バカ

Idiot / Fool

Baka is an insulting slang meaning ‘idiot’ or ‘fool’ and is popular among males but can be used by females too!

If someone does something stupid you will often hear:

Baka jya nai?
バカじゃない?
Are you an idiot?

Boys will often use the masculine ending e (え)as in baka jya nee? (バカじゃねえ?)for greater emphasis.

Learning Japanese slang

How many of these Japanese slang words and expressions did you know? We hope you enjoy using them with your friends – just remember to be aware of the social context, because some of these words are less than polite!

You won’t come across many slang words in your average textbook or language course. If you want to learn real Japanese, as it’s spoken today, we recommend JapanesePod101! It’s an online, audio and video based Japanese course. The content is fun and always up-to-date. There are hundreds of learning pathways to choose from, depending whether you want to learn business Japanese, casual language, or – you guessed it – slang!

Sign up for your lifetime free account at JapanesePod101 here.

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  • 13 Cheesy Jokes in Japanese to Crack You Up
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18 Badass Japanese Slang Words to Impress Your Friends (7)

Francesca Rex-Horoi

Francesca is a freelance copywriter and teacher, who moved to Tokyo from New Zealand at age 24. A linguistics and ESL major, she spent 3 years teaching at an all-boys high school. Now based in France, she remains a self-confessed Japanophile who loves kanji, cooking, cats and the outdoors.

FAQs

What is Mukatsuku? ›

ムカつく mukatsuku

pissed off. When you are upset or annoyed at someone or something, mukatsuku is the word to use. uzai also means “annoying” but mukatsuku sounds like you are more upset so “I'm pissed off” is probably a closer translation in English.

What's some Japanese slang? ›

Japanese Slang Phrases

一だす一は? (Ichi dasu ichi wa?): “One plus one equals?” It's used in place of “Say cheese!” when taking a picture, and the response is “に!” (*Ni!”) in Japanese. 一杯どう (ippai dou?): A slang way to ask someone if they want to grab a drink.

What is UZAI? ›

Uzai / うざい

Short for uzattai or urusai, which means loud, noisy, or annoying, uzai is convenient for complaining about something or someone who is bothering you.

What does Oshakawa mean? ›

おしゃかわ (Osha Kawa)

Taking the words おしゃれ (oshare) and かわいい (kawaii) and fusing them together, this word means “stylish and cute.”

What is Sugoi? ›

1. すごい(sugoi) “すごい” (sugoi) is a compliment that Japanese people often use. It is used anytime when you are impressed by the other person's attitude and behavior, or when you think "This is good!" It is an expression that you feel intuitively rather than thinking. Example.

Why do Japanese say hai? ›

Sometimes it's used as neutral filler speech to indicate you're listening. Sometimes it's used as a sign of acknowledgement. Sometimes it's used as a delineating device to indicate a change in topic. Sometimes it's used as a way of saying “here you go”.

What is a famous Japanese saying? ›

七転び八起き (nana korobi ya oki) English Translation: “Fall seven times, get up eight.” This is definitely one of the most famous Japanese proverbs. You've probably heard the English version: “If at first you don't succeed, try and try again.” It's another phrase that means “don't give up!”

What is Tokyo slang for? ›

Both spoke Cockney fluently, Tokyo was the slang for Coke, Meth, too much sugar… Pretty much anything that gave you crazy energy!

Does Koi mean come? ›

So, koi comes from the verb 来る (kuru). Just like the kanji, it means “to come.” When we conjugate it to 来い (koi) we turn it into the imperative form. It is now a command: “Come!”

What is Mechakucha? ›

Adjective. めちゃくちゃ • (mechakucha) -na (adnominal めちゃくちゃな (mechakucha na), adverbial めちゃくちゃに (mechakucha ni)) absurd, unreasonable, illogical. incoherent, disorderly, messy quotations ▼ reckless, excessive.

What is Kimochi? ›

What is the meaning of kimochi in Japanese? Kimochi is a “feeling.” This type of feeling is usually one brought on by some stimulation and is something of a non-persisting state of feeling. Kimochii (with a long -ii sound) means “good feeling.”

How do you say sus in Japanese? ›

How To Say "That's Sus" In JAPANESE - YouTube

How do Japanese type LOL? ›

笑 (wara) is the equivalent of 'lol' in Japanese.

To write 'lol' in Japanese, you can put kakko wara (笑) or just wara 笑 at the end of a sentence when you want to show amusement: 猫がグデグデしてるね(笑)!

How do Japanese laugh in text? ›

'To laugh' in Japanese is written as '笑う'(kana: わらう; romanisation: warau). Since the word begins with a 'w', Japanese netizens use 'www' to represent laughter - same as 'lol' in English language. Later they found funny that the shape of letter w resembles a cluster of grass.

What does 8 mean in Japanese slang? ›

Meaning: clap, clap, clap. The sound of a number of “8”s is はち (hachi) or ぱち (pachi) in Japanese and the sound of clapping hands is パチパチパチ (pachi-pachi-pachi). Therefore, the sound of “8” and the sound of clapping hands are the same.

What does IKZ mean Vtuber? ›

IKZEdit. Short for ikuzo (いくぞ), Japanese for "let's go". Frequently said in chat, primarily by Kaigai Niki, when something is about to happen.

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