Grandma SquarePants is neither square, nor does she wear pants, but it's a family name. She's SpongeBob SquarePants' father's mother.She enjoys baking and knitting, and general grandmotherly-ness.She is a round sea sponge in a turquoise dress, high heels, glasses and a gray bouffant on top.She is married to Grandpa SquarePants and is the mother of Blue, Harold and Sherm. Her grandsons are BlackJack, Larry, Stanley, Todd and SpongeBob.