Ñau is the Spanish style spelling for a cat meow, similar to miau, and captures the nasal, drawn out sound many cats make. Short meow clips like this spread online because they work without language, fitting pet videos, memes and reaction edits on social platforms. Creators reuse the sound as a punchline for a cat look or mouth movement, turning an everyday pet moment into a joke. Its popularity comes from that simplicity, a single cute noise that anyone watching instantly understands.