Graggle Simpson, also referred to as Gumbly, is an Internet meme centered on a metafictional character of the same name, satirically claimed to be a former core member of the Simpson family on the American animated sitcom The Simpsons, having been removed through retroactive continuity. The intent behind the meme includes satirizing the Mandela effect and its believers. Graggle is most commonly portrayed as a yellow, unclothed, alien-like humanoid with a large mouth and three strands of hair, commonly portrayed in hoax materials alongside members of the Simpson family.