come clean
坦白承认错误或隐瞒的事情
口语·用于承认错误或隐瞒的事情
英文释义
to confess or admit the truth, typically after a period of dishonesty or deception
例句
After weeks of lying about the broken vase, he finally came clean and apologized.
典故来源
源自20世纪初的美国俚语，比喻像清洗污渍一样清除谎言，使内心变得干净。