This sound is widely associated with Sans from Undertale, the 2015 indie game by Toby Fox. Online, fans and meme editors turned the short brass gag into a shorthand for Sans humor, especially in animations, remixes and character edits. It spread through video platforms, reposts and fan compilations, where the abrupt horn hit made simple visuals funnier. It is still used because Undertale remains highly recognizable and Sans continues to be one of the game's most memed characters.