Doublelift is a well-known name in League of Legends, associated with professional play and a large fan following, which is why a shouted version of the name works as instant shorthand for hype. Short, fan-made name chants like this circulate on soundboards and in gaming edits, where they are reused whenever a creator wants a quick, recognisable cheer without recording their own voice. Because the clip is only about two seconds long, it fits neatly into highlights, memes and reaction edits, and its exaggerated length is what keeps it funny rather than just informative.