馬鹿野郎(ばかやろう)

また借金(しゃっきん)をしたのか？馬鹿(ばか)野郎(やろう)！

Did you get into debt again? You idiot! {idiot}

親孝行(おやこうこう)をしない人(ひと)は馬鹿(ばか)野郎(やろう)だと思(おも)います。

I think people who don't respect their parents are idiots. {idiot}

彼女(かのじょ)がいるのに浮気(うわき)をしたって？お前(まえ)は馬鹿(ばか)野郎(やろう)だ！

She's with you and you cheated on her? You're an idiot! {idiot}

どんなに怒(おこ)っていても「馬鹿(ばか)野郎(やろう)」と暴言(ぼうげん)を吐(は)いてはいけない。

No matter how upset you are, you must not lash out and call someone an "idiot". {idiot}

祖父(そふ)が孫(まご)に：「あの高(たか)い壺(つぼ)を割(わ)ってしまったというのか？馬鹿(ばか)野郎(やろう)！」

The grandfather said to his grandson: "Are you saying you broke that expensive vase? You idiot!" {idiot}