to lose one's cool
01
キレる, 怒りを爆発させる
to become suddenly very angry, often to the point of shouting or behaving in an aggressive manner
idiom
informal
例
She loses her cool easily during heated discussions.
店員がまた注文を間違えて持ってきたとき、彼はキレた。
キレる, 怒りを爆発させる