The sound comes from Brazilian YouTuber Nando Moura, whose loud, theatrical reactions have long been clipped by fans into meme compilations, including try-not-to-laugh collections featuring his best moments. Shared through Brazilian meme pages and soundboards, the short Portuguese question became a reusable reaction for viewers who recognised his tone even before they knew the original context. Its popularity rests on that portability: the question is short, instantly expressive, and easy to drop over unrelated footage. That is why it continues to appear in reaction edits, commentary videos, and meme compilations years after it first circulated.
Über diesen Sound
Nando Moura exclaims but what is this? in a short Brazilian meme clip, often used in reaction videos and edits to show confusion or disbelief at absurd moments.
This eight-second clip captures Brazilian YouTuber Nando Moura reacting with exaggerated disbelief, asking in Portuguese, mas o que é isso, which means but what is this. His voice rises sharply on the question, mixing genuine surprise with comic frustration, while the delivery stays fast and theatrical. The phrase lands as an instant punchline because it sounds both baffled and judgmental, as if the speaker cannot believe what he has just seen. Listeners recognize the tone immediately, even without understanding Portuguese, and the clip works best when it interrupts a surprising reveal or an absurd claim.
