This type of long “ooh” reaction is widely used online as a general-purpose meme response rather than being tied to one clearly documented source. It spread through short-form edits, gaming clips, and reaction compilations where creators needed an audio cue for embarrassment, tension, or a verbal burn. Its staying power comes from how flexible it is: the same clip can signal sympathy, secondhand embarrassment, or playful hype depending on the scene. It often appears alongside other staple reaction sounds such as bruh or a buzzer.