Prawn Cracker Share definition Flag The dry crusty tissue that results after wiping up cum from a wank. Fuck man, how longs it been since you been with someone, I bet you have hundreds of prawn crackers under your bed. Prawn Cracker by lemonmeringuepie October 23, 2008 0 0 Get merch Get the Prawn Cracker mug. Buy Now — $32.95 See more merch