The Collaborative International Dictionary of English v.0.48:

Jabber \Jab"ber\, v. t.
   To utter rapidly or indistinctly; to gabble; as, to jabber
   French. --Addison.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Jabber \Jab"ber\, n.
   Rapid or incoherent talk, with indistinct utterance;
   gibberish. --Swift.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Jabber \Jab"ber\, v. i. [imp. & p. p. Jabbered; p. pr. & vb.
   n. Jabbering.] [Cf. Gibber, Gabble.]
   To talk rapidly, indistinctly, or unintelligibly; to utter
   gibberish or nonsense; to chatter. --Swift.
   [1913 Webster]

WordNet (r) 3.0 (2006):

jabber
    n 1: rapid and indistinct speech [syn: jabber, jabbering,
         gabble]
    v 1: talk in a noisy, excited, or declamatory manner [syn:
         rant, mouth off, jabber, spout, rabbit on,
         rave]

Moby Thesaurus II by Grady Ward, 1.0:

128 Moby Thesaurus words for "jabber":
   Greek, absurdity, amphigory, babble, babblement, balderdash,
   bavardage, bibble-babble, blab, blabber, blah-blah, blather,
   blether, blethers, blubber, bombast, bull, bullshit, cackle,
   caquet, caqueterie, chat, chatter, chitter-chatter, clack,
   claptrap, clatter, dither, double-talk, drivel, drone, droning,
   drool, fiddle-faddle, fiddledeedee, flummery, folderol, fudge,
   fustian, gab, gabble, galimatias, gammon, gas, gibber, gibbering,
   gibberish, gibble-gabble, go on, gobbledygook, gossip, guff, gush,
   haver, hocus-pocus, hot air, humbug, idle talk, jabberwocky,
   jargon, jaw, jibber, maunder, maundering, mere talk, mouth,
   mouthing, mumble, mumbling, mumbo jumbo, murmur, murmuring, mutter,
   muttering, narrishkeit, natter, niaiserie, nonsense, nonsense talk,
   pack of nonsense, palaver, patter, piffle, pour forth, prate,
   prating, prattle, prittle-prattle, ramble on, rant, rattle,
   rattle on, reel off, rigamarole, rigmarole, rodomontade, rubbish,
   run on, skimble-skamble, sob, speak incoherently, splutter, spout,
   spout off, sputter, stuff and nonsense, stultiloquence, susurrate,
   susurration, talk away, talk nonsense, talk on, talkee-talkee,
   tittle-tattle, trash, trumpery, twaddle, twattle, twiddle-twaddle,
   vapor, vaporing, waffle, waffling, whisper, whispering, yak,
   yakkety-yak, yap



The Free On-line Dictionary of Computing (30 December 2018):

jabber

    When a network node transmits a packet longer
   than the maximum permissible length, usually due to a fault
   condition.

   (1996-05-10)