The ki ki ma ma whisper is one of horror's most recognisable sounds, long tied to Jason Voorhees and the Friday the 13th films, where the breathy chant signals that the killer is near. It later spread far beyond the movies through horror edits, reaction videos and gaming clips, especially among players of the Roblox horror game Forsaken, where Jason appears as a killer. Because the sound is so short and instantly understood, creators still use it as a quick shorthand for dread, danger and an approaching threat.