This sound comes from Team Fortress 2, Valve's class-based multiplayer shooter released in 2007. Players recognize it as part of the game's win-state audio, and it spread beyond the game through montages, memes, and short gaming edits online. Its popularity lasts because the cue is short, instantly readable, and tied to a strong feeling of victory. It often fills the same role as the Roblox oof or bomb has been planted in gaming meme culture: a fast audio shortcut for a specific moment.