Real Dictionary

talk back
phrasal verb: If you talk back to someone in authority such as a parent or teacher, you answer them in a rude way.

talk back in American English
to answer impertinently or rudely
to reply to a command, request, etc., in a rude or disrespectful manner

talk back in British English
to answer boldly or impudently
noun: a system of telephone links enabling spoken directions to be given during the production of a programme

talk-back in American English
noun: a communications system enabling those in the studio to hear control-room personnel through a loudspeaker or headphones