This clip comes from Team Fortress 2, Valve's multiplayer shooter released in 2007. The domination cue is tied to the game's domination mechanic, where one player repeatedly eliminates another without being killed by them. Because TF2 remained hugely popular through YouTube montages, livestream clips, and meme edits, the sound spread beyond the game itself. Creators still use it as a fast shorthand for total victory, rivalry, or embarrassing someone in a competitive moment, especially in gaming content.