You Are An Idiot began in the early 2000s as a prank website built around a Flash animation of bouncing smiley faces and this endlessly looping song. Friends would trick each other into opening it, and the page was notorious for spawning pop up windows that were hard to close. As an early internet meme it spread through forums, emails, and school computers long before social media, and the chant survived in remixes, soundboards, and reaction videos because almost everyone online recognizes it instantly.