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