bung
1. bung \'b*n\ n [ME, fr. MD bonne, bonghe, fr. LL puncta puncture, fr. L, fem]. of punctus, pp. of pungere to prick - more at PUNGENT 1: the stopper in the bunghole of a cask; also : BUNGHOLE 2: the cecum or anus esp. of a slaughter animal 2. bung vt 1: to plug with or as if with a bung 2: HEAVE, TOSS 3a: BATTER, BRUISE {badly ~ed up} 3b: to cause to bulge or swell