bounce (n.) Look up bounce at Dictionary.com
1520s, "a heavy blow," also "a leap, a rebound" from bounce (v.). In reference to politicians and public opinion polls, by 1996, American English.
bounce (v.) Look up bounce at Dictionary.com
early 13c., bounsen "to thump, hit," of uncertain origin, perhaps from Dutch bonzen "to beat, thump," or Low German bunsen, or imitative. The sense probably has been influenced by bound (v.). In 17c., "to talk big, bluster; bully, scold." Meaning "to bound like a ball" is from 1510s; transitive sense "cause to rebound" is from 1876. Of a check, "be returned for insufficient funds" is from 1927. Related: Bounced; bouncing.