Green’s Dictionary of Slang

wapping n.

[wap v. (1)]

sexual intercourse.

[UK]Rowlands Martin Mark-all 39: Nigling [...] is not vsed now, but wapping, and thereof comes the name wapping morts Whores.
[UK]Dekker ‘Canting Song’ O per se O O2: Wapping thou I know do’s love, else the Ruffin cly the Mort.
[UK]Jonson Gypsies Metamorphosed 39: A deuills-ars-a-peakian / borne firste at Niglington / bred up at ffilchington / boorded at Tappington / bedded at Wappington.
[Ire]Head Eng. Rogue I 36: Most part of the night we spent in Boozing, pecking rumly or wapping.
[UK]J. Shirley Triumph of Wit 198: [as cit. 1612].
[UK]New Canting Dict. n.p.: wapping the Act of Coition. [Ibid.] Winnings for Wapping; Money given a Woman for lying with her.
[UK]Bailey Universal Etym. Eng. Dict. [as cit. 1725].
[UK]Canting Academy, or the Pedlar’s-French Dict. 112: Whoring and Drinking consumes all the Money, Wapping and Busing mills all the Lowyer.
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Lastly, I will cleave to my doxy, wap stiffly, and will bring her duds, margery praters, goblers, grunting cheats, or tibs of the buttery, or any thing else I can come at, as winnings for her wapping.
[UK]H.T. Potter New Dict. Cant (1795).

In compounds

wapping dell (n.) (also wapping moll, ...mort, ...scold) [dell n. (2)/moll n. (1)/mort n.1 ]

a prostitute.

[UK]Rowlands Martin Mark-all 39: Nigling [...] is not vsed now, but wapping, and thereof comes the name wapping morts Whores.
[UK]Dekker ‘O per se O’ in Farmer Musa Pedestris (1896) 12: You Mawnders all, stow what you stall, / to Rome coves watch so quire / And wapping Dell that niggles well, / and takes loure for her hire.
[UK]Dekker ‘Canting Song’ in Eng. Villainies (8th edn) O: And wapping Dell, that niggles well, and takes loure for her hire.
[Ire]Head Eng. Rogue I 45: [as cit. 1612].
[UK]J. Shirley Triumph of Wit 196: You Maunders all, stow what you stall, / to Rumcoves that’s so quire, / And wapping Dell, that niggles well, / and takes lour for her Hire [You maunding Rogues, beware how you / do Steal, for Search is made; / And let each jade look to it too, / who will not do till paid].
Prisoners Opera 21: Rare Ornaments to Female Charms, / Fit to adorn a Wappen-Scold.
[UK]Canting Academy, or the Pedlar’s-French Dict. 114: Whore A Bloss or Wapping Mort.
[UK]Scoundrel’s Dict.
[US]Yankey in London 63: His maternal grandmother was the celebrated Moll Huggins, well known in the metropolis, about the year 1737, by the name of wapping Moll.
[Ire]Joyce Ulysses 47: Buss her, wap in rogue’s rum lingo, for, O, my dimber wapping dell.