ㄉㄨㄛˊduóㄊㄨㄣˊtúnㄆㄥˇpěngㄆㄧˋ

  1. 形容諂媚醜態醒世恆言··孤生歸途》:身子一日不來掇臀捧屁。」文明小史·》:有些同寅一個掇臀捧屁道喜一一回禮。」

to hold up buttocks and praise a fart (idiom)​; to use flatter to get what one wants, to toady, boot-licking