To FIB,
to beat; Fib the Cove's Quarron in the Rompad, for the Lour in his Bung. Beat the Man in the Highway for the Money in his Purse.
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Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
To Fib in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).