2 definitions by MenAgainstJizzJammers

The act of placing ones hand over an ejaculating penis forcing the ejaculate back in.
Damn, that bitch Jizz Jammed me last night!
by MenAgainstJizzJammers January 16, 2014
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A female who while giving a male a blowjob or handy-jay shoves her hand over the head of the penis jamming the ejaculate back inside.
Damn dude, Becky is such a Jizz Jammer!
by MenAgainstJizzJammers January 16, 2014
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