屁股蛋 Traditional form: 屁股蛋 Pinyin (reading): pìgudàn Definitions: butt cheek rump Characters: 屁 - to break wind, to fart; the buttocks 股 - share, portion; thighs, haunches, rump 蛋 - egg Traditional characters: 屁 - to break wind, to fart; the buttocks 股 - share, portion; thighs, haunches, rump 蛋 - egg