Translation guide
The English word "fuck" is a strong vulgarism with many uses. In Japanese, there is no single direct equivalent. Learners must choose expressions based on the specific intent: expressing anger, insulting someone, describing sex, or using it as an intensifier. Direct translation often fails; instead, use context-appropriate Japanese vulgarities, slang, or euphemisms.
Expressing strong negative emotion, similar to 'shit!' or 'damn!'
Literally 'shit', the most common vulgar interjection for anger or frustration. Can be used alone or combined with other words.
Literally 'beast' or 'damn it', a common exclamation of frustration. Less vulgar than クソ but still strong.
Direct loanword from English, used mainly by younger people or in media. Not as natural as native expressions.
Expressing strong contempt or telling someone off.
Referring to sexual intercourse in a crude or explicit way.
Common vulgar slang for 'to have sex'. Can be used transitively (〜をやる) or intransitively.
Adding strong emphasis, often negative, to an adjective or noun.
Prefix クソ (kuso) attaches to adjectives or nouns to mean 'fucking' or 'damn'. Very common in casual speech.
今日はクソ暑いな。
It's fucking hot today.
To make a serious mistake or damage something.
Expressing complete indifference or disregard.
Literally 'it's fine either way', but used to mean 'I don't give a damn/fuck'. Common and not extremely vulgar.
そんなのどうでもいい。
I don't give a fuck about that.
Telling someone to go away in a very rude manner.
Rejecting an idea or situation strongly.
Japanese vulgarity is often less severe than English 'fuck'. Words like クソ are common in casual male speech but may still offend. Direct translations like ファック sound unnatural. Use native expressions for natural effect.
In English, 'fuck' covers both sexual and non-sexual uses. In Japanese, the sexual sense is usually expressed with やる or euphemisms, while expletives use クソ or 死ね. Mixing them (e.g., using ファック for anger) is marked and often comical.
Japanese often omits subjects and uses indirect expressions. Instead of 'fuck you', a sharp tone with お前 (you) and a rude verb can convey the same intent. Observe how native speakers express anger in media.
ちくしょう！なんでこうなるんだ。
Fuck! Why does this always happen?
Fuck! Seriously?
Fuck you, you bastard!
Literally 'drop dead', a strong curse. Similar to 'fuck off' or 'go to hell'.
くたばれ！
Fuck off!
Literally 'don't mess around', used to express anger at someone's actions. Can be translated as 'fuck you' in context.
ふざけるな！冗談じゃない。
Fuck you! This isn't a joke.
昨日彼女とやった。
I fucked my girlfriend yesterday.
Literally 'to sleep', but often used euphemistically for sex. Less crude than やる.
あの二人、寝たんだって。
I heard those two fucked.
Direct loanword from English, used as a verb. Sounds foreign and is less common.
彼らはファックしてた。
They were fucking.
あのクソ野郎！
That fucking bastard!
Means 'absurdly' or 'ridiculously', used as an intensifier. Less vulgar than クソ.
めちゃくちゃ痛い。
It fucking hurts.
Prefix meaning 'super' or 'ultra', used as a mild intensifier. Not vulgar.
超うざい。
Fucking annoying.
Slang for 'to screw up' or 'to fuck up'. Often used for personal mistakes.
またやらかした。
I fucked up again.
To fail or blunder. Less vulgar than やらかす.
試験をしくじった。
I fucked up the exam.
Literally 'do I know?', a rude way to say 'I don't give a fuck' or 'who cares'.
知るかよ。
I don't give a fuck.
Archaic-sounding but still used in rough speech to mean 'get lost' or 'fuck off'.
失せろ！
Fuck off!
Contraction of ふざけるな, meaning 'don't mess around'. Can be used like 'fuck that' when dismissing something ridiculous.
ふざけんな、そんな話。
Fuck that story.
He's a fucking idiot.
クソバカ combines クソ (fucking) and バカ (idiot).