Top definition
The art of masturbating while lying on your back, your arms bent under your legs (around the back of the knees) and grasping your penis with both hands. You only need to stroke with one hand, but it is more legit with two.
Guy #1: So did you start your Yoga class yet?
Guy #2: Nah, I just geffan.
by Apricocklover August 29, 2009
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