The diabeetus pronunciation comes from actor Wilford Brimley, best known for his earnest Liberty Medical commercials for diabetes testing supplies that aired heavily in the late 1990s and 2000s. His distinctive drawl made the mispronunciation memorable, and early YouTube users began isolating the clip, remixing it into parodies and diabetes jokes. It spread through forums, Vine and TikTok as shorthand for sugar overload, and it remains a go-to reaction sound for food and health humor.