WordWeb Online

1. Idle or foolish and irrelevant talk
   - prate, prattle, idle talk, blether [UK, dialect], chin music [US, informal], blather

1. Speak (about unimportant matters) rapidly and incessantly
   - chatter, piffle, palaver [informal], prate, tittle-tattle, twaddle [informal], clack [informal], maunder, prattle, blab [informal], gibber, tattle, blabber [informal], gabble, vapour [Brit, Cdn], rabbit [Brit, informal], vapor [US], witter [Brit, informal], yabber [Brit, informal], yatter [Brit, informal]

Derived forms: twattling, twattles, twattled

Type of: cackle, chatter, mouth, speak, talk, utter, verbalise [Brit], verbalize, yack [informal], yackety-yak [informal], yak, yakety-yak, yatter [informal]