[n] light informal conversation for social occasions
[v] speak (about unimportant matters) rapidly and incessantly
Synonyms
blab, blabber, causerie, chatter, chin-wag, chin-wagging, chitchat, clack, gab, gabble, gabfest, gibber, gossip, maunder, palaver, piffle, prate, prattle, small talk, tattle, twaddle