むきになる
Frequency rank: 30,783. – 31,057. (for form ムキになる: 17,727. – 17,794.)
- to become serious; to take something seriously (joke, teasing); to become irritated or angry (usu. at something trivial); to get worked upword usually written using kana alone
expressions (phrases, clauses, etc.); Godan verb with 'ru' ending
Generated: This meaning indicates a shift in attitude where someone stops being playful or lighthearted and starts to treat a situation with earnestness or seriousness, often in response to teasing or a joke.