To KIMBAW,
to Trick, Sharp, or Cheat; also to Beat severely, or to Bully. Let's Kimbaw the Cull, Let's beat that Fellow, and get his Money (by huffing and bullying) from him.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
To Kimbaw in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).