Green’s Dictionary of Slang

wang n.2

also wanger, wang-wang, wing-wang

(orig. US) the penis [whang n.1 (4)].

[US]N. Kimball Amer. Madam (1981) 167: A worn down male who can only sit with his flabby wang and think about how it was when he was well hung and horny.
[US]‘J.M. Hall’ Anecdota Americana II 114: His wang’s half a yard long.
[US]H. Miller Sexus (1969) 181: You say he’s got a terrific wang, Bill.
[US]L. Bruce Essential Lenny Bruce 25: I heard you guys got a wang on ya.
[US](con. 1950s) H. Junker ‘The Fifties’ in Eisen Age of Rock 2 (1970) 103: Back with the guys, who had probably been [...] pounding or pulling their collective pud, wang, schlong, dong.
[US]L. Bangs in Psychotic Reactions (1988) 232: The usual select contingent of lucky (?) nubiles who they’ll maybe deign to allow [...] the privilege of sucking on their coveted wangers.
[US]S. King Stand (1990) 56: On this part of the coast you could wrap a bandana around your wingwang and let your balls hang free.
[US]Eble Campus Sl. Spring 6: wang-wang – penis.
[US]R. Price Breaks 335: He’s staring at my wanger.
[US]T. Philbin Under Cover 193: Don’t fuckin’ double-cross me, unless you want to go through life without your wang!
[US](con. early 1950s) J. Ellroy L.A. Confidential 9: Some crazy nigger whipped out his wang, pissed in a pitcher of lemonade.
[UK]Indep. Rev. 10 July 20: A celebrated essay entitled: ‘How to Drive Fast on Drugs While Getting Your Wing-Wang Squeezed and Not Spill Your Drink.’.
[Aus]S. Maloney Big Ask 110: I’d even had my wing-wang wiggled for the first time in living memory.
[US]S. King Dreamcatcher 581: As a child he had always wakened at this point (often with his stiff wang wagging).
Twitter 7 Aug. [Internet] Only if you use kerosene to clean your wang, then dry it in front of an open flame.

In compounds

wang-dangler (n.)

a male homosexual.

[UK]K. Richards Life 101: A lot of them [i.e. Australians] were wang-danglers because they could be more poofter in London than they could in Melbourne.