gibbering
adjective
[ ˈdʒɪb(ə)rɪŋ ]
• speaking rapidly and unintelligibly, typically through fear or shock.
• "a gibbering idiot"
gibber
verb
• speak rapidly and unintelligibly, typically through fear or shock.
• "they shrieked and gibbered as flames surrounded them"
Similar:
prattle,
rattle on,
chatter,
babble,
ramble,
drivel,
jabber,
patter,
gabble,
bumble,
burble,
twitter,
go on,
run on,
mutter,
mumble,
maunder,
prate,
bleat,
cackle,
slabber,
gab,
yak,
yap,
yackety-yak,
yabber,
yatter,
natter,
yammer,
blabber,
jibber-jabber,
blather,
blether,
blither,
jaw,
gas,
shoot one's mouth off,
witter,
rabbit,
chunter,
waffle,
flannel,
run off at the mouth,
mag,
clack,
twaddle,
twattle,
Origin:
early 17th century: imitative.