The 'Yatta!' meme originated from a 2001 hit song by the Japanese comedy group Happa-tai (The Green Leaves), featuring performers dancing energetically in nothing but green leaf loincloths. The word itself translates to 'I did it!' or 'Alright!', and the song’s absurdist optimism quickly turned it into one of the earliest viral internet sensations on platforms like Newgrounds. It became a staple of early 2000s internet culture, representing pure, unadulterated joy and success. Today, the meme is frequently used to celebrate small or large victories, often appearing in gaming communities or coding forums when someone finally solves a frustrating problem.