Green’s Dictionary of Slang

1. to have sex, usu. used of a woman.

c.1566		Harman Caveat for Common Cursetours in Viles & Furnivall (1907) 87: There was a proud Patrico and a nosegent, he tooke his jockam in his famble, and a wapping he went.
1592		Groundworke of Conny-catching [as cit. c.1566].
1611		Middleton & Dekker Roaring Girle V i: Then we’ll couch a hogshead under the ruffmans, and there you shall wap with me, and I’ll niggle with you.
1648		Dekker ‘Canters Dict.’ Eng. Villainies (9th edn).
1659		Catterpillers of this Nation Anatomized 4: Whores, who when they are wapping will be sure to geld the mans pocket.
1665		Head Eng. Rogue I 45: Wap To Swive.
1674		Head Canting Academy (2nd edn) 4: I will cleave to my Doxy, Wap stiffly, and will bring her Cloaths, Hens, Turkies, Piggs, Geese, or anything else I can come at.
1688		R. Holme Academy of Armory Ch. iii item 68c: Canting Terms used by Beggars, Vagabonds, Cheaters, Cripples and Bedlams. [...] Wap well, Kiss well.
c.1698		B.E. Dict. Canting Crew n.p.: Wap, c. to Lie with a Man. If she won’t wap for a Winne, let her trine for a Make, c. If she won’t Lie with a Man for a Penny, let her Hang for a Half-penny.
1707		J. Shirley Triumph of Wit (5 edn) 196: This Doxy Dell can cut been whids, and wap well for a win .
1719		A. Smith Lives of Most Notorious Highway-men, etc. (1926) II [as cit. c.1698].
1725		New Canting Dict. [as cit. c.1698].
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
1754		Scoundrel’s Dict. 16: To Copulate – Wap.
1785		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.
1796		Grose Classical Dict. of the Vulgar Tongue (3rd edn).
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1896		Farmer Vocabula Amatoria (1966) 246: Souler la volonté. To copulate; ‘to wap.’.
1925		E. Field ‘A French Crisis’ in Facetiae Americana 19: She’d dance the ‘Shaking of the Sheets,’ fa-doodle, wap and shag.

2. (UK Black) to shoot, to kill.

2017

67 ‘Waps’ 🎵 Step correct with that Mac / You know we dressed in all black / No funeral, no funeral, man's turning up tryna wap.

3. see whop v.