The sound comes from South Park, the long-running animated comedy created by Trey Parker and Matt Stone, which frequently parodies celebrities in exaggerated form. Its Bono character riffs on the U2 singer's arena-rock persona and earnest public image, reducing him to a repetitive yeah chant that fans clipped and shared online. The short loop spread through meme edits, reaction videos and soundboards because it needs no setup to understand. It remains popular as a shorthand for mocking self-congratulation and celebrity grandstanding.