The wendigo comes from Algonquian folklore as a gaunt, cannibalistic spirit linked to winter, hunger and isolation, and the name has since appeared across horror stories, games and films. This particular recording has no confirmed source, so its life is mainly online as a short meme scream. The joke is the delivery, a name shouted and stretched far past a normal call until it sounds like a monster summoning itself. Short clips like this spread through soundboards and reaction edits, where the recognisable word and wailing tail make it reusable for any scary reveal.