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1.
A playground game that involves one player who is designated as "it", to chase other players while masturbating in an attempt to tag or touch them, usually with their ejaculate. The tagged player then becomes 'it' and must chase the other players while masturbating.

Also known as Jerk Tag.
I started jerking off & everybody scattered & ran, so I chased them like we were playing a good ol' game of Masturbation Tag!
by amygo June 20, 2011