The sound is closely tied to the Backrooms internet phenomenon, a creepypasta centered on endless liminal spaces and unseen dangers. Rather than being known for one definitive film or game source, this kind of entity audio spread through horror edits, found-footage style videos and Backrooms lore posts across social platforms. It remains popular because it instantly signals that a creature is nearby, even before anything appears on screen. That shortcut to dread makes it a recurring choice for analog horror, suspense memes and eerie transition edits.