酔狂・粋狂

プログレッシブ和英中辞典(第4版)

すいきょう【酔狂・粋狂】

ほんの酔狂でやったことだ
I did it merely for the fun of it.／《俗》 I did it just for the hell of it.

真冬に川で泳ぐとは酔狂な男だね
He must be crazy [out of his mind] to swim in the river in the middle of the winter.

出典　小学館「プログレッシブ和英中辞典(第4版)」