Porch Cramp Share definition Flag A painful spasm/cramp of the asshole that can cause you to jump up from the chair on your porch. Riley jumped up from his chair spewing expletives, his butt cheeks clenching as a rather painful porch cramp affected his asshole. Porch Cramp by T Bubala November 28, 2011 0 0 Get merch Get the Porch Cramp mug. Buy Now — $32.95 See more merch