RUM-Padders,
the better Sort of Highwaymen, well mounted and armed. See High Pad.
· 
· 
Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
· ·
Rum Padders in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).