屁眼儿 pìyǎnr anus Definitions Defs Origin Strokes Stroke Words Sentences Sents 屁眼 pìyǎn anus anus; asshole; also called 屁股眼 pìguyǎn儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.