Gathering around 10-15 gay men, having them all jizz into a cup, then transfer the jizz to a balloon, tie it up, and yell BOMBS AWAY! And throw the jizz filled balloon at your unsuspecting victim.
Absul was being a little bitch so we got the men's locker room to make us a nice homemade Jizz Grenade to get him back.
by FapCommander October 13, 2009
That is, blowing a load of cum into one of the various orifices of a woman, most likely her mouth. The term was coined by the Hungarian rapper Tommy Fluor
Open your mouth, here comes the jizz grenade!
by DryudHaxor July 10, 2011