1. chitter-chatter - Noun
2. chitter-chatter - Verb
Light and lively discussion.
Talk about trivial or nonsensical matters; inconsequential or incessant conversation.
(dialectal) The chattering of teeth due to trembling, shivering, etc.
chitter-chatter (third-person singular simple present chitter-chatters, present participle chitter-chattering, simple past and past participle chitter-chattered)
To talk trivially, nonsensically, or incessantly.
Death Cab for Cutie references Olympia in the song "Your Bruise" saying "Chitter-chatter all these secrets started giving me the shivers/ Plain and simply broken down near Olympia". Source: Internet