blabber
[verb]
Synonyms: babble, blather, drivel, drool, gabble, prate, prattle, twaddle, waffle
[noun]
Synonyms: chatter, babble, blab, chat, clack, gab, gabble, jabber, palaver, prattle
[noun]
Synonyms: chatterbox, bandar-log, blabbermouth, blabmouth, chatterer, gabber, jabberer, magpie, prater, prattler

[TahlilGaran] English Synonym Dictionary ▲

blab‧ber /ˈblæbə $ -ər/ verb [intransitive]
informal to talk in a silly or annoying way for a long time
blabber on
I wish she’d stop blabbering on about her boyfriends.

[TahlilGaran] Dictionary of Contemporary English ▲