ムキになる・むきになる

向きになる

表記・読み：向きに成る・ムキになる・むきになる

1. 1

   to become serious; to take something seriously (e.g. a joke, teasing); to become irritated or angry (esp. at something trivial); to get worked up

   expressions (phrases, clauses, etc.)五段動詞（る）word usually written using kana alone