FLOGGING-Cully,
an old Letcher, who, to stimulate himself to Venery, causes himself to be whipp'd with Rods.
· 
· 
Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
· ·
Flogging Cully in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).