Big Smoke is a character from Grand Theft Auto San Andreas, the 2004 open-world game from Rockstar Games, where his deep voice and larger-than-life personality made him a fan favourite. Clips of his exaggerated reactions later spread through YouTube edits, TikTok videos and meme soundboards, where this long ooh became shorthand for stunned disbelief. It endures because it is instantly recognisable even to viewers who have never played the game, and because a single vocal reaction can carry a joke across gaming, reaction and comedy content without any dialogue.