Luigi is Nintendo's lanky younger brother of Mario, introduced in Mario Bros. in 1983 and known for his nervous personality and high pitched voice. Short voice clips of the character celebrating have circulated for years on soundboards and in gaming edits, where fans use Luigi reactions to mark underdog victories. This extended yes version became popular as a compact meme sound because it conveys triumph in just over a second, making it easy to reuse in streams, shorts and reaction videos.