This clip circulates as a user-made prank sound built around the phrase nuclear diarrhea, a hyperbolic label for the worst possible stomach disaster. It was produced with a voice changer effects tool rather than taken from a film, game or television show, and it spread through soundboards where short fart and diarrhea effects are shared for reactions. Its appeal is the escalation in the name itself, moving from a simple fart joke to an explosive, almost cartoon disaster, which is why creators keep reusing it for gross-out moments.