JUSTICE,
I'll do Justice, Child; I will Peach, or rather Impeach, or discover the whole Gang, and so save my own Bacon.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
The Vulgar Tongue originally collected by Grose, 1811.
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).