'blowhard' definitions:

Definition of 'blowhard'

From: WordNet
noun
A very boastful and talkative person [syn: bragger, braggart, boaster, blowhard, line-shooter, vaunter]

Definition of 'blowhard'

From: GCIDE
  • blowhard \blow"hard\ n. a very boastful and talkative person.
  • Syn: braggart, boaster, line-shooter, vaunter. [WordNet 1.5]