Jizz Mortar Share definition Flag Action in which a male positions the angle of his penis in such a manner as to drop his jizz from above on an unsuspecting female. I got my trajectory wrong when I tried to surprise attack your mom with a jizz mortar. Jizz Mortar by Ramsus90 November 21, 2010 0 0 Get merch Get the Jizz Mortar mug. Buy Now — $32.95 See more merch