Demon Toilet is a short user-generated soundboard clip rather than a line from a film, show or game, and its exact original recording is not documented. It belongs to a wider run of toilet humour clips online, where an everyday bathroom sound is made stranger or funnier with a distorted voice, much like a fart sound used for a cheap laugh. Its appeal is that contrast: a mundane subject delivered in a dark, demonic tone. Shared in edits and reaction videos, it survives because the joke is instant, visual and easy to reuse.