SpongeBob Galaxy Wiki
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Jeffrey the Jellyfish is a character who has only appeared in one episode "I'm Your Biggest Fanatic." It is most likely he is not a true jellyfish, mainly because of his large size and that he had fish legs. It is most likely that Patrick is a fan of Jeffrey, since he was amazed when he saw him, and after the guard kept telling him to stop touching things in the museum, the guard saw Patrick run after Jeffrey, and immediatly ran after Patrick.

Physical appearance

He is a giant pink jellyfish, he has no clothes. He has a very large face and a squiggly smile, along with large eyes. He has large "stingers" and green fish legs.