Que isso literally means what is that in Portuguese, and the clip circulates widely in Brazilian meme and livestream communities as a shorthand for disbelief. Shared through short videos, reaction edits and soundboards, it became a quick way for Portuguese-speaking creators to punctuate a shocking moment without adding commentary. Its appeal has lasted because the feeling is universal even when the language is not, and it sits naturally alongside other surprise sounds like the scream meme and the oh my god meme, making it easy to drop into almost any unexpected scene.
About this sound
A short surprised Portuguese exclamation, the Que Isso meme sound is used in reaction videos to highlight something shocking, funny or unbelievable.
The clip captures a sudden, wide-eyed 'que isso' delivered in Brazilian Portuguese, the kind of phrase someone blurts out when something unexpected flashes up on screen. It is short, punchy and full of disbelief, with the voice rising sharply before cutting off, leaving the reaction hanging in the air. Because it lasts only a few seconds, it works as an instant beat of surprise that does not need translation for viewers to understand the feeling. It makes a moment feel bigger, funnier and more dramatic, turning a normal clip into a shared joke about disbelief.