The line comes from Red Dead Redemption 2, Rockstar Games' 2018 open-world western starring Arthur Morgan, a member of the Van der Linde gang voiced by Roger Clark. Arthur says calm down during tense encounters in the game, and the short, level-headed delivery made the clip easy to lift for short videos and soundboards. It spread alongside other Rockstar protagonist lines, like CJ from GTA SA, because both work as instant, character-driven reactions. Years after release, it remains popular for defusing jokes, arguments, and exaggerated panic in edits.