Going into a goldsmith’s shop, under pretence of buying a wedding ring, and palming one or two, by daubing the hand with some viscous matter.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Family Man * FamsNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes