The clip comes from SCP Containment Breach, the free indie horror game released in 2012 and based on the SCP Foundation wiki, where SCP-173 is a concrete statue that only moves when unseen. The snap plays at the instant of its kill, and the sound spread through early Let's Plays and horror compilations before becoming a standalone meme effect. Today editors reach for it the way they reach for the Metal Gear Solid alert or the Minecraft damage sound: a tiny, instantly readable game audio cue that tells the viewer exactly what just happened without any explanation.