Gentlemen comes from Team Fortress 2, Valve's team-based multiplayer shooter released in 2007, where it is spoken by the Spy, the game's suave French infiltrator known for disguises and backstabs. The line is one of the Spy's short introductory voice lines, and its clipped, theatrical delivery made it easy to lift out of gameplay and reuse on its own. It has since circulated widely in gameplay montages, meme edits and soundboards, where a single word is enough to signal class, confidence or ironic formality.