ムキになる

むきになる
expression
to get worked up, take something too seriously
informalemotionaction
1. to get worked up, take something too seriously
To become overly serious or agitated about something, often in reaction to teasing or criticism.
そんなにムキにならないで。
Don't get so worked up.
冗談(じょうだん)なのにムキになるなよ。
It's a joke—don't take it so seriously.
からかったらムキになって怒(おこ)り出(だ)した。
When I teased them, they got all worked up and angry.
ゲームで負(ま)けそうになるとムキになる人(ひと)っているよね。
There are people who get really intense when they're about to lose a game, right?

Usage

Becoming overly serious or agitated when the situation does not call for it: when someone cannot take a joke, gets too competitive, or overreacts to teasing or criticism.

Writing

Also written 向(む)きになる; the むき is 向(む)き, facing something head-on.

general
Added 2026.2.1 17:18 · Revised 2026.10.2 15:55
09000/09365_mukininaru