In good time, or at the beginning of a meal: pudding formerly making the first dish. To give the crows a pudding; to die. You must eat some cold pudding, to settle your love.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Pudding Sleeves * PuffNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes