This sound is tied to Coach, one of the survivors in Left 4 Dead 2, the 2009 zombie co-op game. Online, creators often isolate his scream and add echo or reverb to exaggerate the panic for meme edits and short reaction videos. It stays popular because the voice line is immediately readable even to casual players, and the extra echo makes simple gameplay moments feel absurdly dramatic. It commonly appears alongside other exaggerated gaming reaction sounds such as a scream meme.