Cheeky or impertinent responses, especially to criticism.(noun)
To respond in a disputative, often sarcastic manner.(verb)
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Use "backchat" in a sentence
"These same Kaffirs did their work with amazing alacrity, and looked as if they enjoyed it; there was no "backchat" when an order was given -- usually by friend"
"We can scarcely imagine Simon Cowell and the good people at Syco Records tolerating this kind of backchat from Leona Lewis."
""backchat" when she is called from another room - they are all miracles that we treasure."