Very little is known about the original recording behind E Theobabac, and the title itself appears to be a phonetic rendering of the phrase as heard by uploaders on user generated soundboards. That mystery helped it spread as a random reaction clip rather than a quote tied to a known character or scene. It circulates in meme edits, short form videos and chat soundboards where context free audio gets reused the most. Because it carries no clear meaning, creators can apply it to almost any baffling moment and the audience still gets the joke.