Definition of "darkmans"

I have, by the salomon, a doxy that carries a kinchin mort in her slate at her back, besides my dell and my dainty wild dell, with all whom I'll tumble this next darkmans in the strommel […]

c. 1607–1610 (date written), Thomas Middleton; Thomas Dekker, The Roaring Girle. Or Moll Cut-purse. […], London: […] [Nicholas Okes] for Thomas Archer, […], published 1611, (please specify the Internet Archive page number)

Men were men then, and fought each other in the open field, and there was nae milling in the darkmans.

1815 February 24, [Walter Scott], Guy Mannering; or, The Astrologer. […], volumes (please specify |volume=I to III), Edinburgh: […] James Ballantyne and Co. for Longman, Hurst, Rees, Orme, and Brown, […]; and Archibald Constable and Co., […]

Ah, Bess, my covess, strike me blind if my sees don't tout your bingo muns in spite of the darkmans.

1828, [Edward Bulwer-Lytton], Pelham; or, The Adventures of a Gentleman. […], volumes (please specify |volume=I to III), London: Henry Colburn, […]

White thy fambles, red thy gan / And thy quarrons dainty is. / Couch a hogshead with me then. / In the darkmans clip and kiss.

1922 February, James Joyce, “[Episode 3]”, in Ulysses, Paris: Shakespeare and Company, […]