blowhard

from WordNet (r) 3.0 (2006)

blowhard
    n 1: a very boastful and talkative person [syn: {bragger},
         {braggart}, {boaster}, {blowhard}, {line-shooter},
         {vaunter}]

from The Collaborative International Dictionary of English v.0.48

blowhard \blow"hard\ n.
   a very boastful and talkative person.

   Syn: braggart, boaster, line-shooter, vaunter.
        [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

20 Moby Thesaurus words for "blowhard":
      Captain Bobadil, Gascon, Texan, big mouth, blower, blusterer,
      boaster, brag, braggadocio, braggart, fanfaron, gasbag, gasconader,
      hector, hot-air artist, miles gloriosus, rodomontade, windbag,
      windjammer, windy

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