くそ・糞・屎kuso[2]odaka (tail-high)

1. interjectiondamn; damn it; shit; crap
2. nounfeces; excrement; dung
   お前まえの鼻はなをクソに擦すりつけてやった。↗

   I sure rubbed your nose in shit.
3. prefixdamn; damned; blasted; stupid
   四よん天王てんのうも倒たおした、クソ長ながい地下ちか迷宮めいきゅうもクリアした。↗

   I'd defeated the four sub-bosses and got through the damn long underground labyrinth.
4. prefixvery; extremely; really
5. na-adjectiveterrible; awful; shit; crap
6. adverba lot
7. nounnegligible; insignificant; not mattering at all; counting for nothing; hardly worth consideration; out of the questionas ...もくそもない or ...もくそもあるか

• SynonymふんNeutralThe same kanji read 「ふん」: a neutral noun for animal droppings, as in 「鳥の糞」 — matter-of-fact, not a curse like 「くそ」.
• SynonymウンチCasualColloquial 'poo': originally baby talk but now common in everyday speech, with a cute, childlike flavor 「くそ」 lacks.
• Synonym大便だいべんWrittenA written, clinical word for feces, as in 「大便検査」 — leans medical and formal, unlike colloquial 「くそ」.
• SynonymうんこCasualA childish colloquial word for poop; slightly less vulgar than 「くそ」.
• Related野郎やろうCasualColloquial name-calling for a guy or bastard; it insults people, while 「くそ」 also works as an exclamation like 'damn'.

Use 「糞（くそ）」 for feces or as an angry exclamation like 'damn', as in 「くそっ」「下手くそ」. Animal droppings take 「糞（ふん）」; formally or medically say 「大便」; in casual speech 「うんち」「うんこ」 work; call someone a bastard with 「野郎」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 腹立はらだたしいことや失敗しっぱいしたときに発はっする怒いかりや不満ふまんの声こえ。
2. 動物どうぶつや人間にんげんが排出はいしゅつする便びん。
3. ひどい、つまらないという意味いみを強つよめる接頭辞せっとうじ。
4. 非常ひじょうに、すごく、という意味いみを強つよめる接頭辞せっとうじ。
5. ひどくて悪わるい。最低さいていだ。
6. たくさん。たっぷり。
7. 価値かちがほとんどない。取とるに足たらない。