寸草不留 [－－－－]

Jyutping cyun3 cou2 bat1 lau4
Pinyin cùn cǎo bù liú

Definitions (CC-CANTO)
  1. to leave not even a straw; to shave the head bald; to kill everyone and break everything, so nothing is left
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）