Green’s Dictionary of Slang

whiskin n.

a pimp.

1629		R. Brome Northern Lasse I iv: Farewell old Whiskin.
1635		J. Shirley Lady of Pleasure IV ii: I am promis’d a convenient whiskin, [...]That has read all Sir Pandarus workes.
1640		H. Mill Nights Search I 15: The Whiskin laughs [...] For with this bait he lately catcht a Gull.
1663		Wandring-Whores Complaint 3: Wand. Who. I have played my part, so did Whiskin too.