chatter about someone or something
to talk idly and actively about someone or something. All the guests were chattering about something or other. People are chattering about you and Claire. Do you want to know what they are saying?
chatter (away)
(at someone or something) 1. Lit. to talk incessantly or noisily to or at someone or something. The parrot was chattering away at its reflection in the mirror. The kids were chattering away, Stop chattering at me!
2. Fig. [for a small animal, such as a squirrel] to try to scare off someone or something. The little squirrel chattered away at the crow. The crow came close and the squirrel chattered away again.
chatter from something
[for one's teeth] to shake noisily with a chill from the cold, the dampness, a fever, etc. My teeth were chattering from the extreme cold. It was a terrible illness. My teeth chattered from the chills that followed the fever.