jibber-jabber (v.)youdaoicibaDictYouDict[jibber-jabber 词源字典]
1728, "to talk gibberish," reduplication of jabber (q.v.). Related: Jibber-jabbering. As a noun, from 1813. also gibber-gabber. Compare gibble-gabble "idle talk, chatter" (c. 1600).[jibber-jabber etymology, jibber-jabber origin, 英语词源]