SCP-173 is a fictional concrete statue from the SCP Foundation, a collaborative online horror writing project, and it became widely known through indie horror games and YouTube videos about contained anomalies. The creature is famous for moving only when unobserved and for breaking the necks of its victims, which made even a small movement sound feel threatening to fans. As SCP clips spread across gaming and horror communities, short audio cues like this rattle were reused in edits, streams, and memes to imply that the statue had shifted position while no one was looking.