Fat, fleshy. A fine crummy dame; a fat woman. He has picked up his crumbs finely of late; he has grown very fat, or rich, of late.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Cruisers * CrumpNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes