To cheat with dice; also to coax or wheedle, To cog a die; to conceal or secure a die. To cog a dinner; to wheedle one out of a dinner.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Cog-1 * CogueNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes