SCP-173 comes from the SCP Foundation, a collaborative online horror project built around fictional anomalous objects, where it is described as a concrete statue that kills by snapping necks when it is not being watched. The creature became widely known through fan-made horror games such as SCP: Containment Breach, where avoiding its gaze is central to survival. Clips of its kills circulated in gameplay videos and memes, and the short neck snap became shorthand for a sudden, unavoidable death, which keeps it useful for horror edits and reaction videos today.