Synonyms for Tittle-tattle (same or very similar meaning)
WordNet sense 1 (light informal conversation for social occasions):
causerie, chitchat, gab, gabfest, gossip, chin-wag, chin-wagging, small talkWordNet sense 2 (speak (about unimportant matters) rapidly and incessantly):
blab, blabber, chatter, clack, gabble, gibber, maunder, palaver, piffle, prate, prattle, tattle, twaddleFrom the ODE community, based on WordNetadd/edit