The ooh belongs to the MLG meme era, the wave of over-the-top gaming montages that parodied competitive esports editing in the mid-2010s with air horns, lens flares and exaggerated reactions. Short kid reaction clips like this one were ripped from viral videos and passed around meme soundboards, where editors grabbed them as instant hype stingers. This half-second ooh survived because it does the job in one beat: a genuine burst of childlike amazement that fits quickscopes, trick shots and fails without needing any context.