One who hunts more tor the sake of the prey than the sport. Pot valiant; courageous from drink. Potwallopers: persons entitled to vote in certain boroughs by having boiled a pot there.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Pot Converts * Potatoe TrapNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes