hot air

1 boastful speech or writing <his taking credit for the rescue was mostly hot air, since the boat was actually saved by the Coast Guard> Synonyms bluster, brag, braggadocio, bull [slang], cockalorum, fanfaronade, gas, gasconade, grandiloquence, bombast, magniloquence, rant, rodomontade (also rhodomontade)Related Words oratory, rhapsody, rhetoric; pomposity, turgidity, wind; bloviation, verbosity, windiness; babble, blab, chatter, drivel, gabble, gibber, gibberish, jabber, prattle; jawing, patter, prating, yammering; egotism, self-conceit, self-importance, swagger, vaunt

2 language that is impressive-sounding but not meaningful or sincere <her campaign promise to “fight for the people” showed a taste for stale hot air> Synonyms bombast, fustian, gas, grandiloquence, rhetoric, oratory, verbiage, windRelated Words claptrap, drivel, gibberish, hogwash, humbug, jabberwocky, jazz, moonshine, nonsense; affectedness, floweriness, grandiosity, loftiness, pomposity, pretension, pretentiousness; garrulity, garrulousness, verboseness, verbosity, windiness, wordiness