Be silent, be quiet, don’t do it. Cheese it, the coves are fly; be silent, the people understand our discourse.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Cheese-toaster * CheeserNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes