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Short for JizzStar. The act of masterbating into ones hand, taking the hand filled with semen and 5-staring the nearest person. Either act can be done in private, or public. Can be done with any bodily fluid or combination of bodily fluids.
Hey, you know Tom?
Yeah. What about him?
I heard he waits until people pass his dorm, then chases them down and jistars them.
That is soooo cool. I wish he would jistar me!
by tpenisbombs January 18, 2011
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