Booyooy circulates online as a short, user-shared comedy sound effect with no confirmed film, game or show source attached to it. Its nonsense name comes from the wobbly vocal-like shape of the noise itself, which helped it spread on soundboards and in short-form edits where a quick boing is needed. Creators keep returning to it because it is clean, brief and easy to drop over almost any visual gag without dialogue or music getting in the way.