(v. i.) To bubble up and hiss; to exhibit lively feelings that can not be concealed; as, to effervesce with joy or merriment\.

assibilate be enthusiastic blubber boil boil over bubble bubble over bubble up burble buzz carry on over enthuse ferment fizz fizzle go on over guggle gurgle gush gush over hiss hush lisp make much of plop rave rave about rhapsodize seethe shush sibilate simmer siss sizz sizzle sneeze sniff sniffle snore snort snuff snuffle sparkle spit splutter sputter squash squelch squish swish take on over wheeze whish whistle whiz whoosh work zip