memphis mudslide Share definition Flag When one attempts to deliver a Boston Pancake only to discover that they have diarrhea. Dude, my chick was totally down for a Boston Pancake, but lost her mind when it turned out to be a Memphis Mudslide! memphis mudslide by P. Niss January 5, 2009 0 0 Get merch Get the memphis mudslide mug. Buy Now — $32.95 See more merch