bad egg
不良分子、壞人
口語·形容品行惡劣的人
英文釋義
a person who is dishonest, unreliable, or generally of bad character
例句
Don't trust him, he's a bad egg who's been in jail twice.
典故來源
源自19世紀美國俚語，壞雞蛋從外觀難以分辨，但打開后臭不可聞，比喻外表正常但品行惡劣的人。