Synonyms for Twaddle (same or very similar meaning)
WordNet sense 1 (pretentious or silly talk or writing):
baloney, boloney, bosh, drool, humbug, bilgewater, taradiddle, tarradiddle, tommyrot, toshWordNet sense 2 (speak (about unimportant matters) rapidly and incessantly):
blab, blabber, chatter, clack, gabble, gibber, maunder, palaver, piffle, prate, prattle, tattle, tittle-tattleFrom the ODE community, based on WordNetadd/edit