This sound is associated with the Mr. Incredible Becoming Uncanny meme, a viral format built around still images of Mr. Incredible from The Incredibles that become progressively more disturbing. The meme spread widely on YouTube, TikTok and meme compilations around 2021, with each stage using darker audio to signal a deeper descent into discomfort. The second uncanny phase became popular because it is short, recognizable and easy to drop into edits whenever a joke shifts from ordinary to unnerving.