A homo-erotic activity performed to provide mutual homosexual penile gratification. Two erect penises are tightly wound shaft to shaft with black electrical tape, followed by a rhythmic thrusting movement which provides the necessary friction to acheive mutual gayman orgasm.
Guy1: Man, I am so horny but I am sick of always having a wank.
Guy2: Yeah, me too.
Guy1: Want to tape our cocks together and do a Philadelphia Winch?