股溝 [－沟]

Jyutping gu2 kau1
Pinyin gǔ gōu

Definitions (CC-CEDICT)
  1. buttock cleavage
  2. butt crack
Definitions (Wiktionary)
  1. noun
    intergluteal cleft; butt crack
Examples (Wiktionary)
  1. Mandarin
    屁股沟
    屁股溝
    pì gǔ gōu
    • gluteal cleft