v. & n.
v.intr. (chatted, chatting) talk in a light familiar way.
n. 1 informal conversation or talk. 2 an instance of this. chat show Brit. a television or radio programme in which celebrities are interviewed informally. chat up Brit. colloq. chat to, esp. flirtatiously or with an ulterior motive.
[ ME: shortening of CHATTER ]