寸草不留 (cyun3 cou2 bat1 lau4) — to leave not even a straw; to shave the head bald; to kill everyone and break everything, so nothing is left in Cantonese
cyun˗₃寸couˊ²草batˉ¹不lauˎ₄留Mandarin Pinyin: cun4 cao3 bu4 liu2
Meaning of 寸草不留
nounto leave not even a straw; to shave the head bald; to kill everyone and break everything, so nothing is left