Seratopsing Share definition Flag To act as if one were a dinosaur, to drunkenly display dinosaur-like qualitites Bill charged at me like a majestic triceratops but I know he was just seratopsing. Seratopsing by MMMMM2 February 28, 2010 0 0 Get merch Get the Seratopsing mug. Buy Now — $32.95 See more merch