ROB’EM, AND CHEAT’EM. Stroud, Rochester, and Chatham; so called by soldiers and sailors, and not without good reason.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Starter * Star LagNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes