Synonyms and related words :
babble, be stupid, blather, blither, blubber, boil, boil over, bubble, bubble over, bubble up, chatter, clack, dither, dote, drivel, drool, effervesce, ferment, fizz, fizzle, gabble, guggle, gurgle, hiss, lap, maunder, plash, plop, prattle, purl, rattle, ripple, run on, seethe, simmer, slobber, slosh, sparkle, splash, swash, swish, trill, wash, work, yak, yammer