When a male masturbates while sticking an object (usually a finger) up his anus.
Dan; Why did you spend so long in the jacks, were you having a gay wank or something?

Matt; yes i was.

Dan; wait i didn't know you were gay!

Matt; I'm not, you don't have to be gay to enjoy a gay wank.
by johnny wanks-alot December 19, 2008
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A Gay Wank is the secondary wank a male can use, as it is common knowledge that a man uses different semen when wanking to straight and gay porn. Hence meaning you can wank twice consecutively.
"Dude, I wanna wank but I can't"
"Use your gay wank man"
"Good idea"
by TheRiceKing69 January 25, 2015
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