The sound is linked to Cidade de Deus, the acclaimed Brazilian crime film released in 2002 and known in English as City of God. The laughter is attributed to the figure called Shaman, and as a short, self-contained clip it has travelled well beyond the film itself, circulating on soundboards and in short-form video edits. Creators reuse it because it instantly signals menace and instability without needing dialogue or context, keeping it useful for villain reveals, horror edits and dark comedy long after the film's original release.