v. 1 jabber, gabble, chatter, gibber, blather or blether, prate, prattle, blab, gossip, Colloq Brit natter, witter, Slang jaw, yack, US run off at the mouth Stop gabbing and get on with your work!
n. 2 chatter, chit-chat, prattle, jibber-jabber, jabber, gossip, blarney, blather or blether, tittle-tattle; cackle, moonshine, nonsense, drivel, twaddle, rubbish, gobbledegook or gobbledygook, mumbo-jumbo, poppycock, bunk or bunkum, balderdash, stuff and nonsense, hogwash, eyewash, Colloq piffle, flummery, rot, bull, codswallop, Slang bullshit, horseshit, shit, crap, garbage, Chiefly Brit tosh, balls He had nothing important to say - just a lot of gab