clean house
大干一场，彻底整顿
口语·表示彻底整顿或清除
英文释义
to get rid of or eliminate something or someone completely or thoroughly
例句
The new manager decided to clean house and fire all the underperforming employees.
典故来源
源自打扫房屋的比喻，引申为彻底清除不需要的人或物。