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The act of masturbating while watching Glee.
Person 1: How's it going dude?

Person 2: Pretty good, can't wait for my gleewank this evening!


Person 1: I can't believe you watch Glee dude, it's so unlike you!?

Person 2: Hey bro, you've not had a wank until you've had a gleewank.
by wrong 'un March 09, 2010
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