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Possibly the funniest thing you can do to a friend when they are sleeping. You stand up and jiggle your testicals in their face and masturbate at the same time. Then you ejaculate all over their face and up their nose.
Kevin: Dude, you got the best jamble sack last night!
Ben: By who?
Kevin: ME!!
Ben: "*punches Kevin in the face*
by FlyingFortress July 19, 2009

Words related to Jamble Sack

cumshot masturbate penis semen testical