SpongeBob SquarePants is a long-running Nickelodeon animated series that first aired in 1999 and follows its optimistic sea-sponge hero in the underwater town of Bikini Bottom. Over the years its exaggerated voices, sound design and expressive reactions have become a staple of internet meme culture, with short clips reused in reaction videos, edits and short-form posts. Because the character is recognised worldwide, even a few seconds of his voice can signal silliness instantly, which is why creators keep returning to these cartoon sounds for comedy.