None of your cheek. None of your insolence. “None of your jaw” means none of your nagging or word irritation.
We say a man is very cheeky, meaning that he is saucy and presumptuous.
“On account of his having so much cheek” —Dickens: Bleak House.
(To). To be saucy. “You must cheek him well,” i.e. confront him with fearless impudence; face him out.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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