Mentlegen has circulated online mainly as a short reaction sound, shared and remixed in meme edits, gaming clips and short-form videos rather than as a longer song or scene. Its appeal comes from the word itself: it sounds familiar enough to recognise, yet odd enough to feel like a joke on its own, so creators can use it without context and still get a laugh. Because it is only a few seconds long, it fits neatly at the end of a clip or between jokes, which has helped it keep popping up in reaction compilations and Discord memes.