The sound comes from SpongeBob SquarePants, the long-running Nickelodeon animated series created by Stephen Hillenburg that premiered in 1999. Clips of SpongeBob breathing heavily have been isolated and reposted across meme pages and soundboards, where the out-of-context audio took on a creepier tone than in the cartoon itself. Its popularity grew through short-form edits that pair the breathing with tense or awkward scenes, and it remains widely used because the character is instantly recognisable even when only the breathing is heard.