jabberer

from WordNet (r) 3.0 (2006)

jabberer
    n 1: someone whose talk is trivial drivel [syn: {driveller},
         {jabberer}]

from The Collaborative International Dictionary of English v.0.48

Jabberer \Jab"ber*er\, n.
   One who jabbers.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

27 Moby Thesaurus words for "jabberer":
      agreeable rattle, babbler, big talker, blab, blabber, blabberer,
      blabbermouth, blatherer, chatterbox, chatterer, gabber, gabbler,
      gasbag, gibble-gabbler, great talker, hot-air artist,
      idle chatterer, jay, magpie, moulin a paroles, patterer, prater,
      prattler, rattle, windbag, windjammer, word-slinger