verb (used with or without object)
- to talk or utter rapidly, indistinctly, incoherently, or nonsensically; chatter.
- rapid, indistinct, or nonsensical talk; gibberish.
- to speak or say rapidly, incoherently, and without making sense; chatter
- such talk
1650s, spelling variant of Middle English jablen (c.1400), also javeren, jaberen, probably ultimately echoic. Related: Jabbered; jabbering. The noun is 1727, from the verb.