seaskull Share definition Flag The MAN. The coolest dude to ever walk the planet or sail the seven seas. Also known as The Skull. Wow. Did you see seaskull looking so fine last night? He rocks my world. Oh yeah! AAAARRRRGh !! seaskull by done been skulled March 10, 2004 0 0 Get merch Get the seaskull mug. Buy Now — $32.95 See more merch