Banshees come from Irish folklore, where the wailing spirit was said to foretell death, and that legend has made the banshee scream a familiar shorthand for horror in films, games and online videos. Short versions of the sound circulate on soundboards and meme pages, where the contrast between the gentle title and the unsettling wail makes it easy to reuse as a joke. Because it is under two seconds long, it slots into reaction clips, spooky edits and Halloween compilations without needing any setup, and its popularity comes from that instant, recognisable scare rather than from one clip or creator.