|Origin:||From the sound| 1 also chatter away/on to talk quickly
in a friendly way without stopping, especially about things that
are not serious or important: She chattered away happily until
she noticed I wasn't listening. She chattered excitedly like a
child. We were chattering about the events of last night. if
birds or monkeys chatter, they make short high sounds if your
teeth are chattering, you are so cold or frightened that your
teeth are knocking together 4 British English educated middle-
class people who like to discuss and have opinions about recent
events and situations in society —chatterer noun [countable]