This sound is associated with Deltarune, the role playing game series by Toby Fox that began in 2018. Online, short clips from the game are often isolated and reused as reaction audio in fan edits, gameplay compilations, and meme posts. The appeal here is the quick, expressive delivery, which makes it easy to sync with a sudden cut or visual gag. Even without much context, creators keep using short Deltarune audio because it instantly signals game humor and exaggerated surprise to viewers who recognize the style.