ㄓㄨˋㄓㄡˋㄨㄟˊㄋㄩㄝˋzhùzhòu‑wéinüè

助纣为虐
  1. 協助暴虐無道比喻幫助惡人壞事 寬容無異助紂為虐」。

lit. helping tyrant Zhou 商紂王[Shang1 Zhou4 wang2] in his oppression (idiom)​, fig. to take the side of the evildoer, giving succor to the enemy
Di Xin