The sound comes from Freddy's Insanity World 2, a fan-made entry in the wider Five Nights at Freddy's horror community, where animatronic jumpscares are the central scare mechanic. Clips like this circulated through gameplay videos, edits and soundboards because a single scream can signal the whole genre instantly. It sits close in use to the classic FNAF Jumpscare Scream, which follows the same sudden, loud formula. Creators still reuse it outside gameplay for reaction posts and horror memes, where the scare lands even without the original scene attached.