Team Fortress 2, Valve's class based shooter released in 2007, made the Spy famous for disguising as the other team and landing instant backstabs. Calling out a Spy became a core part of matches, similar to an enemy spotted alert in other shooters. Short callout clips from the game spread on forums and soundboards in the 4chan and early meme era, where players reused them outside the game. The omgspy clip survives as a quick shorthand for paranoia and betrayal, still dropped into edits whenever someone is not who they claim to be.