A bargain whereby the purchaser is taken in. This is likewise frequently used to express matches or marriages contracted solely on the score of interest, on one or both sides, where the fair sex are bought and sold like cattle in Smithfield.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Smiter * Smock-facedNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes