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 rapperTommy Fluor
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.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi