This scream comes from Mortal Kombat 9, the 2011 fighting game where Kabal appears as a playable fighter. Known for his respirator mask and hookswords, Kabal contributes several exertion vocals in the game, and fans ripped this short falling yell for soundboard use. Like many MK9 voice clips, it spread through fighting game streams, compilation videos and meme edits rather than any official soundtrack release. Creators keep using it because it instantly signals a Mortal Kombat style knockout fall.