和英辞書

メンチを切る

verb

(idiomatic, chiefly Kansai, slang) to stare or glare in challenge; by extension, to pick a fight

彼は突然メンチを切って、私は驚いた。

He suddenly glared at me, and I was surprised.

意味（1）

(idiomatic, chiefly Kansai, slang) to stare or glare in challenge; by extension, to pick a fight

いつものように渋(しぶ)谷(や)センター街(がい)を夜(よ)回(まわ)りしていると、若(わか)い娘(むすめ)が出(で)会(あ)い頭(がしら)にぶつかってきた。「なにメンチ切(き)ってんだよ、オッさん！」[…]自(じ)分(ぶん)でぶつかっておきながら、男(おとこ)のような言(こと)葉(ば)で因(いん)縁(ねん)を吹(ふ)っかけてくる。

Itsumo no yō ni Shibuya Sentā-gai o yomawari shite iru to, wakai musume ga deaigashira ni butsukatte kita. “Nani menchi kitte n da yo, ossan!” […]Jibun de butsukatte okinagara, otoko no yō na kotoba de innen o fukkakete kuru.While I was was doing the night rounds through Shibuya Center Street as always, a young girl bumped into me as we passed. “What the hell are you staring at, old man!” […] Despite her being the one who bumped into me, she tried picking a fight with me with these mannish words.