bluster, bombast, brag, braggadocio, bull(slang), cockalorum, fanfaronade, gas, gasconade, grandiloquence, hot air, rant, rodomontade(also rhodomontade)

oratory, rhapsody, rhetoricpomposity, turgidity, windbloviation, verbosity, windinessbabble, blab, chatter, drivel, gabble, gibber, gibberish, jabber, prattlejawing, patter, prating, yammeringegotism, self-conceit, self-importance, swagger, vaunt