No te rías is Spanish for don't laugh, and the phrase has become a handy reaction sound for Spanish-speaking creators and viewers who enjoy it even without a full translation. It circulates mainly as a short shareable audio clip for memes, reaction videos, and chat messages, where its direct, teasing address to the listener does much of the comic work. Its appeal is its simplicity: one familiar instruction, instantly recognisable in context, that can introduce a joke, a challenge, or an awkward moment without needing any setup.