With no clear single source attached to this clip, it circulates mainly as a short vocal meme sound shared on soundboards and in short-form edits. Its appeal comes from its simplicity: the repeated ei is easy to recognise, easy to mimic and easy to place over almost any visual gag. Creators reuse it as a generic hype chant rather than a quote from a show or film, which helps it travel across languages and trends. That flexibility is why it keeps appearing in reaction clips, compilations and playful edits.