Green’s Dictionary of Slang

the male genitals.

1696		D’Urfey Comical Hist. of Don Quixote Pt III I i: Gadsdiggers [...] I’ll go presently, and get ready my Wedding Tackle [...] and then at night, Vather-in law – at night – oh Lord, ha, ha, ha.
1966		Trimble 5000 Adult Sex Words and Phrases 224: wedding kit (Sl.) The Genitals.
1984		Partridge DSUE (8th edn) 1314/2: since ca. 1918.
1984		V. Darroch On Coast 35: Wedding gear: Male genitals.
1991		R. Doyle Van (1998) 574: He lifted his T-shirt, pulled in his stomach and looked down at his marriage tackle.
1995		Woroni (Canberri) 25 May 22/4: Chooka distinguished himself by running up on stage, dropping the tracky-dacks and waggling the wedding tackle.
1998		I. Welsh Filth 203: The guys would [...] photocopy their wedding tackle on to a sheet of paper.
2002		S. Maloney Something Fishy (2006) 149: How about I cut off your wedding tackle?
2018		I. Welsh Dead Man’s Trousers [35]: [E]h cups his weddin tackle n the blood explodes through the fingers ay his hands.