Maw Tucket is Patrick, Sam, Ed Star, and Gary's grandmother, the mother to Herb, Sluggo, and an unknown starfish who is the father of Ed Star, the mother-in-law to Margie Star, the wife of Billy Bob Star, the sister-in-law to Cletus Star, the cousin of Carl, the daughter of Yorick and Princess Tulsa, the granddaughter of King Amoeba and Queen Mildew, the grandneice of Patrick Revere, the neice of Prince Callous and Prince Dingus, a descendant of Primitive Star, Patar, and Pecos Patrick, and one of Patron's ancestors.
She is light tan and has light green eyes with black pupils. She wears a light green shirt with a light green collar. She also wears a dark green skirt. She also has a pipe. She once wore a green skirt with a blue stripe.
Her first appearance was "Rule of Dumb" where she appears on a family tree.
Her second appearance was "InSPONGEiac." In this appearance, an image of her appears on a projector screen as Patrick explains that she had toe barnacles and invented a cure that Patrick later revealed to be coffee.