To pawn any thing. I’ll vamp it, and tip you the cole: I’ll pawn it, and give you the money. Also to refit, new dress, or rub up old hats, shoes or other wearing apparel; likewise to put new feet to old boots. Applied more particularly to a quack bookseller.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Valentine * VamperNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes