- thump (v.)
- c.1537, "to strike hard," probably imitative of the sound made by hitting with a heavy object (cf. E.Fris. dump "a knock," Swed. dial. dumpa "to make a noise"). The noun is first recorded 1552. Thumping (adj.) "exceptionally large" is colloquial from 1576.
- bounce
- early 13c., bounsen "to thump, hit," perhaps from Du. bonzen "to beat, thump," or Low Ger. bunsen, or onomatopoeic; sense probably influenced by bound (v.). Sense of "to bounce like a ball" is from 1510s; the rubber check sense is from 1927. Bouncing "vigorous, big" is from 1570s.
- bonkers
- "crazy," 1957, British slang, perhaps from earlier naval slang meaning "slightly drunk" (1948), from notion of a thump ("bonk") on the head.
- baste (3)
- "beat, thrash," 1530s, perhaps from the cookery sense of baste (2) or from some Scandinavian source (e.g. Swedish basa "to beat, flog," bösta "to thump") akin to O.N. beysta "to beat," related to O.E. beatan (see beat).