Kersplonka Share definition Flag Slang for ass, similarly to how "badonkers" is used as a term for breasts. Can also be spelled like "Kersplonker". You've got MASSIVE Kersplonkas, dude. Double caked up on a Thursday afternoon, right there. Kersplonka by knightofpherae February 1, 2021 0 0 Get merch Get the Kersplonka mug. Buy Now — $32.95 See more merch