SpongeBob's great grammyma (possibly Great Grandma SquarePants or Great Grandma BubbleBottom), referred to as "great-grammyma," is one of the four possible great grandmothers of SpongeBob SquarePants.


Although she has never made a physical appearance in the show as of yet, Plankton pretends to be her in the episode "Gramma's Secret Recipe." For his disguise, he wears a yellow and red long dress, with clear glasses and white, poofy hair.


Plankton portrays her in "Gramma's Secret Recipe" in an attempt of stealing the Krabby Patty secret formula.

He walks over to SpongeBob's house and fools him into thinking that he is his great-grandmother.

Towards the end of the episode, Plankton's real grandma realizes what's going on and enters the Krusty Krab, where she drags out Plankton, disguising as her. SpongeBob notices her and thinks that his great grandmother caught Plankton stealing the formula.


She may have been born to SpongeBob's great great grandmother.

At some point, she and her husband either had Grandpa SquarePants, Grandpa BubbleBottom, Grandma SquarePants, or Grandma BubbleBottom.

Sponges (VE)

BlackJackBlue SpongeBobCaptain Blue SquarePantsClever Visual Metaphor for the Abstract Concept of ThoughtCheeseHead BrownPantsCool SpongeBobDrifterDuke Thomas FeathermuffinEnsignFrankenstein SpongeBobGirly TeengirlGrandma SquarePantsGiant baby SpongeBobGiant SpongeBobGrandpa SquarePantsHarold SquarePantsMargaret SquarePantsMermaid PantsMoldy SpongeManBobOpen window maniacPrimitive SpongeRandomLand SpongeBobSherm SquarePantsSuper SpongeBob SquarePantsSnow spongeSpongezillaSpongeBob's grandsonSpongeBob SquarePantsSpongeBob SquarePants (clones)SpongeBoySpongeBob hallucinationSpongeBuck SquarePantsSpongeBob DoppelgangerSpongeGarSpongeTronSpongy SpongySir SpongeBobStanley S. SquarePantsThe ManiacTodd SquarePantsSpongeBob's great grandmotherSpongeRobertSponge the HorseSquidBob TentaclePantsSquidBobRed SpongeBobMini SpongeBobOff Model SpongeBobSnailBob

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