The clip is built around a simple mix-up: Luna believes the search engine is called Gugulu, then learns it is actually Google, and her cheerful ok Gugulu response turns the correction into the joke. Because the moment is so short and easy to understand, it has travelled as a light reaction sound for anime clips, funny edits and short videos where a character gets a familiar word wrong. Its appeal is not a complicated reference, but the instantly recognisable feeling of confidently saying the wrong thing.