How to say "asshole" in Japanese
Choosing the right word
- ケツ穴けつあなnounA vulgar term for the anus itself: 'asshole' in the literal, body-part sense. Choose it for crude anatomical talk, not for insulting a person.
- ケツの穴けつのあなexpression, nounThe same vulgar anatomical word as ケツ穴, spelled with の in the middle: the anus, 'asshole' taken literally. Use it for crude reference to the body, not to curse someone.
- nounSlang for the anus — the literal 'asshole' — and usually written in kana alone. Like ケツ穴 it belongs to crude body talk, not to insulting a person.
- ゲス野郎ゲスやろうnounThe insult sense of 'asshole': a sleazebag, a lowlife, a shithead. Use it to denounce a contemptible person's character, not to name a body part.
- nounA derogatory word whose primary sense is 'big forehead; fivehead'; its 'asshole' gloss is marginal. It is seldom what you want for calling someone an asshole — ゲス野郎 is the natural choice there.
For the anatomical sense choose 「ケツ穴」 or 「ケツの穴」, with 「けつマンコ」 as crude slang for the same; for insulting a contemptible person use 「ゲス野郎」, while 「デコすけ」 chiefly means 'big forehead' and only marginally works as an insult.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
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