股沟

Traditional form:

股溝

Pinyin (reading):

gǔgōu

Definitions:

• buttock cleavage
• butt crack

Characters:

• 股 - share, portion; thighs, haunches, rump
• 沟 - ditch, drain, gutter, narrow waterway

Traditional characters:

• 股 - share, portion; thighs, haunches, rump
• 溝 - ditch, drain, gutter, narrow waterway