DIMBER-Damber,
a Top Man or Prince amongst the Canting Crew; also the chief Rogue of the Gang, or the compleatest Cheat.
· 
· 
Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
· ·
Dimber Damber in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).