[bang] vb [prob. of Scand origin; akin to Icel banga to hammer] vt (ca. 1550) 1: to strike sharply: bump
2: to knock, beat, or thrust vigorously often with a sharp noise
3: to have sexual intercourse with--often considered vulgar ~ vi 1: to strike with a sharp noise or thump
2: to produce a sharp often metallic explosive or percussive noise or series of such noises
[2]bang n (ca. 1550) 1: a resounding blow
2: a sudden loud noise--often used interjectionally 3 a: a sudden striking effect b: a quick burst of energy "start off with a ~" c: thrill "I get a ~ out of all this --W. H. Whyte" -- bang for the buck also bang for one's buck : value received from outlay or effort "investment is yielding less bang for the buck --Fortune" [3]bang adv (1828): right, directly "ran ~ up against more trouble" [4]bang n [prob. short for bangtail (short tail)] (1878): a fringe of banged hair--usu. used in pl. [5]bang vt (1878): to cut (as front hair) short and squarely across