Blood Slap Share definition Flag Where you get bloody poonani juice on your hand and slap somebody with it. This person has been 'blood slapped'. Scotty,"Slap!" "Dude, you just blood slapped me. Blood Slap by Seraph November 16, 2004 0 0 Get merch Get the Blood Slap mug. Buy Now — $32.95 See more merch