RUFFIN,
the Devil; as The Ruffin nab the Cuffin Quire, and let the Harman beck trine with his Kinchins about his Col quarron; i.e. Let the Devil take the Justice, and let the Constable hang with his Children about his Neck.
The Vulgar Tongue originally collected by Grose, 1811.
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).