bad egg
不良分子、坏人
口语·形容品行恶劣的人
英文释义
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.
典故来源
源自19世纪美国俚语，坏鸡蛋从外观难以分辨，但打开后臭不可闻，比喻外表正常但品行恶劣的人。