The Giant Fruit Fly is a giant fly who appears in the episode, "A SquarePants Family Vacation." SpongeBob and Patrick were scared of it in the episode, but in the end, it turned out to be helpful. It allowed SpongeBob and Patrick to jump on its back, so they could travel back to their destination. It is unknown how it lives underwater.
The Giant Fruit Fly is nearly similar to a wasp colored to be a fly, but has yellow eyes with red rectangle irises, two arms and four legs, and yellow "stingers".