The Pyro is one of the nine playable classes in Team Fortress 2, the team based shooter released by Valve in 2007. The character is known for a gas mask, a flamethrower, and almost completely unintelligible speech, which turned short voice lines into reusable reaction sounds online. Clips like this spread through gaming videos, machinima, and meme edits, where they sit alongside other shooter lines like Enemy Spotted and bomb has been planted. Its muffled surprise still works because fans recognise the voice instantly, even without any gameplay on screen.