The phrase o que é isso is everyday Portuguese for what is that, widely understood in Brazil and Portugal as a spontaneous question when something looks odd. As a standalone clip it circulates on soundboards and in short video edits detached from any single original source, which is why its exact recording origin is unclear. Its popularity comes from how portable it is: the short length, clear questioning intonation and familiar wording let creators reuse it across memes, reaction videos and messaging apps without needing any extra context to explain the joke.