Interjection
Usually written in kana
1. damn; damn it; shit; crap
あーくそ、もっと早く気付いてりゃよかった。Ah, damn it, I should have noticed sooner.
Noun
Colloquialism
Usually written in kana
2. feces; excrement; dung
犬のくそを踏んでしまった。I stepped in dog poop.
Prefix
Usually written in kana
3. damn; damned; blasted; stupid
このくそパソコン、また固まった！This damn computer froze again!
4. very; extremely; really
くそ忙しいんだよ。I'm damn busy.
Adjective (な)
Colloquialism
Usually written in kana
5. terrible; awful; shit; crap
この映画はくそだった。This movie was crap.
Adverb
Slang
Usually written in kana
6. a lot
Noun
Usually written in kana
7. negligible; insignificant; not mattering at all; counting for nothing; hardly worth consideration; out of the question
as ...もくそもない or ...もくそもあるか
反論もくそもあるか！Objections, my foot!