Team Fortress 2 is Valve's multiplayer team shooter, first released in 2007, and the Scout is its fast, loud-mouthed Boston runner class. His many short voice lines were recorded for in-game reactions and taunts, and players quickly began clipping the funniest ones for videos, streams and soundboards. Ah jeez caught on because it captures the Scout's attitude in less than two seconds, making it easy to reuse whenever something goes wrong. Years later it remains a staple reaction sound for gaming content, especially in fail compilations and short-form edits.