The phrase comes from Mexican Spanish internet slang, where nmms is a shortened, expressive form of no mames and que asco means how disgusting. As a short audio, it circulates mainly through meme pages, short-form videos and WhatsApp audios, where Spanish-speaking creators use it as a ready-made reaction to gross or absurd content. Its appeal is its brevity and cultural familiarity: listeners who know the slang hear the attitude immediately, even without context. That combination of humour, disgust and everyday speech keeps it useful long after individual trends fade.