The Exorcist, released in 1973, remains one of the most influential horror films ever made, centred on the possession of a young girl, Regan MacNeil. Her screams and distorted voice became shorthand for demonic horror and are still quoted in parodies, trailers and Halloween edits decades later. Online, short clips from the film were repurposed as scare videos and soundboard sounds, where a single scream could startle a viewer without any context. That instant recognition is why creators still reach for it whenever they need a fast, unmistakable horror shock.