B0338950 (blō′vē-āt′)intr.v.blo·vi·at·ed, blo·vi·at·ing, blo·vi·atesSlang To discourse at length in a pompous or boastful manner: "the rural Babbitt who bloviates about 'progress' and 'growth'"(George Rebeck).[Mock-Latinate formation, from blow.]blo′vi·a′tion n.
bloviation
(ˌbləʊvɪˈeɪʃən) nUS a lengthy but insubstantial speechThesaurusSeebloviate