尻 kāo — buttocks; rump 尻 kāo Level 2 · Frequent #3558 kāo kao1 Basic definition noun buttocks; rump e.g 尻子尻骨 Detailed explanation noun buttocks e.g 尻间 · 尻包儿 verb penetrate Related words 尻子 kāo zi buttocks (dialect) 尻骨 kāo gǔ the coccyx; the rump bone