蔫屁 Traditional form: 蔫屁 Pinyin (reading): niānpì Definitions: silent fart Characters: 蔫 - withered, faded, decayed; calm 屁 - to break wind, to fart; the buttocks Traditional characters: 蔫 - withered, faded, decayed; calm 屁 - to break wind, to fart; the buttocks