The line comes from Die Hard, released in 1988, where New York cop John McClane, played by Bruce Willis, uses the old cowboy phrase Yippee Ki Yay after villain Hans Gruber mocks him as a cowboy. The full version became one of the most quoted action lines of the 1980s, closely tied to McClane's underdog, wisecracking hero image. Shortened clips later spread across meme edits, gaming videos and soundboards, where the phrase alone signals a defiant win without needing the rest of the scene or the stronger language that follows it in the film.