The meuheuheuheu spelling imitates a drawn out evil laugh typed phonetically, similar to muahaha in English language memes. Online, that style of laugh has long been used in comments, captions and chats to show mock villainy without needing an explanation. As short form video and soundboards spread the audio version, creators began dropping the clip itself instead of typing the laugh. It remains popular because the delivery is instantly recognisable, works without any visual context, and turns bragging, teasing or a minor win into a joke about exaggerated scheming.