noun
trash; piece of shit
Strongly derogatory slang used to insult a person or thing as worthless, contemptible, or utterly useless. Comparable to calling someone or something 'garbage' or 'scum'.
あいつは本当にゴミカスだな。
That guy is really a piece of shit.
こんなゴミカスみたいな仕事、もう辞めたい。
I want to quit this trashy job.