The line comes from Skrillex's 2011 dubstep track First of the Year (Equinox), where the shouted sample launches the main drop. It was widely shared in early YouTube edits, gaming montages and MLG style videos, then kept circulating on soundboards and short form platforms as a standalone reaction. Because the original track was so popular in meme culture, the shout became shorthand for exaggerated danger even without the music behind it. It remains in use for fails, pranks and sudden reveals where the joke depends on treating something minor as a full emergency.