Spongebob Octagonpants Share definition Flag The name of a suprisingly intelligent sponge who wears eight-dementional pants. And they said it wasn't possible... Spongebob Octagonpants by Bulletproof Marshmallow October 26, 2003 0 0 Get merch Get the Spongebob Octagonpants mug. Buy Now — $32.95 See more merch