くたばっちまえdrop dead, you bastard!, fuck you!

嫌(きら)いな奴(やつ)は皆(みな)くたばっちまえ！

"Drop dead, all you bastards I hate!" {drop dead, you bastard!, fuck you!}

僕(ぼく)の事(こと)をいじめたやつはくたばっちまえ！

Drop dead, you bastard who bullied me! {drop dead, you bastard!, fuck you!}

「くたばっちまえ」と暴言(ぼうげん)を吐(は)いた生徒(せいと)を注意(ちゅうい)する。

The teacher scolded the student who had cursed, saying "Drop dead, you bastard!" {drop dead, you bastard!, fuck you!}

俺(おれ)にこんなに惨(みじ)めな思(おも)いをさせた奴(やつ)はみんなくたばっちまえ！

Drop dead, all of you who made me feel this miserable! {drop dead, you bastard!, fuck you!}

後輩(こうはい)：「先日(せんじつ)は『くたばっちまえ』と暴言(ぼうげん)を吐(は)いてしまい、赤面(せきめん)の至(いた)りです…。」

Junior: "The other day I ended up saying 'drop dead, you bastard!' and it was absolutely embarrassing..." {drop dead, you bastard!, fuck you!}