Team Fortress 2 launched in 2007 as Valve's class based team shooter, and its nine mercenaries became meme staples thanks to expressive voice lines recorded for dominance, pain and surprise. Short exclamations like this one were ripped from gameplay, uploaded to soundboards and reused in edits far outside TF2, often alongside similar panic reactions such as no god please no. Its popularity comes from how recognisable the delivery is: even listeners who never played the game read it as instant, exaggerated dread in under two seconds.