Source : Webster's Revised Unabridged Dictionary (1913)

Braggadocio \Brag`ga*do"cio\, n. [From Braggadocchio, a boastful
   character in Spenser's ``Fa["e]rie Queene.'']
   1. A braggart; a boaster; a swaggerer. --Dryden.

   2. Empty boasting; mere brag; pretension.

Source : WordNet®

braggadocio
     n : vain and empty boasting [syn: {bluster}, {rodomontade}, {rhodomontade}]