Footsteps is a general-purpose sound effect rather than a quote or named meme from one source. Sounds like this have long been used in film, radio, games and online editing to signal movement, distance and presence. On short-form video platforms, creators often drop footsteps under POV scenes, horror setups and comedy bits to make an entrance feel more noticeable. It is still widely used because viewers instantly understand what it means, and it layers naturally with other cues like door knocking sound effect or ambience.