Nani what!?

The famous anime shout nani meaning what became a meme sound for extreme shock and disbelief. Used in reaction edits, fails, and viral clips to exaggerate surprise.

This sound is a very short shocked reaction built around the Japanese word "nani," which means "what." It usually lands as a sharp, surprised voice clip that instantly signals confusion, disbelief or sudden alarm. Because it is so brief, it works like a comedic punctuation mark at the exact second something weird, unexpected or suspicious happens on screen. Viewers recognize it as an anime-flavored reaction, so it adds exaggerated drama even when the moment itself is small, making ordinary clips feel more absurd or intense.