This sound is best known online as a SpongeBob reaction meme rather than a clearly documented broadcast quote. It spreads in short edits, reposts and soundboard clips because the familiar cartoon voice instantly signals disbelief. Creators pair it with abrupt zooms, freeze frames and other reaction staples to make a reveal hit harder. It remains popular because SpongeBob is widely recognizable and flexible in meme culture, much like SpongeBob Fail or a Vine boom sound used to underline a joke.