MLG stands for Major League Gaming, but online the term grew beyond esports into a meme style built around overedited montage parody videos in the mid-2010s. Those edits often used loud stingers, hit sounds and the MLG air horn to exaggerate wins, fails and reaction moments. The style spread widely on YouTube and gaming meme pages, and the shorthand still survives because viewers instantly recognize the joke: take a small moment and present it like a legendary play.