yackety-yak
Nonstop trivial talk
Yackety-yak is idle, prolonged chatter—talk for the sake of talking rather than communicating anything substantial.
The reduplicative form suggests the repetitive, almost mechanical quality of such conversation: They spent the whole afternoon in yackety-yak about nothing.
Also used as a verb meaning to engage in such talk.
babble
Incoherent speech
natter · blabber · chitchat · gossip · talkative · banter · schmooze · palaver · tittle-tattle · jaw
gibberish
Unintelligible speech or writing
balderdash · poppycock · malarkey · hogwash · claptrap · piffle · codswallop · bunkum · tommyrot · flapdoodle
- talkativenesstalkativeness, verbosity, wordiness, garrulity, loquacity