To worm out; to obtain the knowledge of a secret by craft, also to undermine or supplant. He is gone to the diet of worms; he is dead and buried, or gone to Rothisbone.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
World * WranglersNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes