To rob. I spoke with the cull on the cherry-coloured prancer; I robbed the man on the black horse. Cant.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Spatch Cock * SpeakNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes