The Collaborative International Dictionary of English v.0.48:

Gibe \Gibe\, v. i. [imp. & p. p. Gibed; p. pr. & vb. n.
   Gibing.] [Cf. Prov. F. giber, equiv. to F. jouer to play,
   Icel. geipa to talk nonsense, E. jabber.]
   To cast reproaches and sneering expressions; to rail; to
   utter taunting, sarcastic words; to flout; to fleer; to
   scoff.
   [1913 Webster]

         Fleer and gibe, and laugh and flout.     --Swift.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gibe \Gibe\, v. i.
   To reproach with contemptuous words; to deride; to scoff at;
   to mock.
   [1913 Webster]

         Draw the beasts as I describe them,
         From their features, while I gibe them.  --Swift.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gibe \Gibe\, n.
   An expression of sarcastic scorn; a sarcastic jest; a scoff;
   a taunt; a sneer.
   [1913 Webster]

         Mark the fleers, the gibes, and notable scorns. --Shak.
   [1913 Webster]

         With solemn gibe did Eustace banter me.  --Tennyson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gibe
    n 1: an aggressive remark directed at a person like a missile
         and intended to have a telling effect; "his parting shot
         was `drop dead'"; "she threw shafts of sarcasm"; "she takes
         a dig at me every chance she gets" [syn: shot, shaft,
         slam, dig, barb, jibe, gibe]
    v 1: be compatible, similar or consistent; coincide in their
         characteristics; "The two stories don't agree in many
         details"; "The handwriting checks with the signature on the
         check"; "The suspect's fingerprints don't match those on
         the gun" [syn: match, fit, correspond, check,
         jibe, gibe, tally, agree] [ant: disaccord,
         disagree, discord]
    2: laugh at with contempt and derision; "The crowd jeered at the
       speaker" [syn: jeer, scoff, flout, barrack, gibe]

Moby Thesaurus II by Grady Ward, 1.0:

144 Moby Thesaurus words for "gibe":
   Parthian shot, affront, aphorism, apothegm, aspersion, atrocity,
   back answer, barrack, be merry with, bon mot, boutade, brickbat,
   bright idea, bright thought, brilliant idea, call names,
   caustic remark, chaff, comeback, conceit, contempt, contumely,
   crack, crack a joke, crack wise, cut, cut at, cutting remark,
   deride, derision, despite, dig, dig at, dishonor, disoblige, dump,
   dump on, enormity, epigram, facetiae, flash of wit, fleer,
   fleer at, flight of wit, flout, flouting, foolery, fun, gibe at,
   gibing retort, gird, give offense to, happy thought, heckle,
   humiliate, humiliation, hurl a brickbat, indignity, injury, insult,
   jab, jab at, jape, jeer, jeer at, jeering, jest, jibe, jibe at,
   joke, josh, kid, kid around, leg-pull, make a funny, make fun,
   make fun of, mock, mockery, mot, nasty crack, offend, offense,
   outrage, parting shot, persiflage, play of wit, play on words,
   pleasantry, poke fun at, pooh, pooh-pooh, pun, put down, put-down,
   put-on, quip, quips and cranks, rag, rail, rail at, raillery,
   rally, rank out, razz, repartee, retort, revile, rib, ridicule,
   riposte, rude reproach, sally, scintillate, scintillation, scoff,
   scoff at, scoffing, scold, scout, scurrility, short answer, slam,
   slap, slap at, smart crack, smart saying, snappy comeback, sneer,
   sneer at, sparkle, stroke of wit, swipe, taunt, tease, thrust,
   treat with indignity, turn of thought, twit,
   uncomplimentary remark, utter a mot, verbal thrust, wisecrack,
   witticism