(n.) A bully; a hector; a swaggerer; an empty boaster.

Captain Bobadil Gascon Texan blower blowhard blusterer boaster brag braggadocio braggart candor communicativeness conversableness effusion effusiveness fanfaron flow of words flowing tongue fluency fluent tongue flux de bouche flux de paroles flux of words frankness garrulity garrulousness gasbag gasconader gassiness gift of gab glibness gregariousness gush gushiness hector hot-air artist long-windedness loose tongue loquaciousness loquacity miles gloriosus openness prolixity slush sociability spate of words talkativeness verbosity volubility windbag windiness windjammer windy