simpians Share definition Flag a Simpians is a species of human with an abnormally large penis, measuring upwards of 8 inches. “Have you seen James? My guy is packing at least 9 inches, he must be a Simpians!” simpians by massivesimpians September 10, 2020 0 0 Get merch Get the simpians mug. Buy Now — $32.95 See more merch