"Ó o gás" is widely shared online as a Brazilian Portuguese meme audio, especially in short-form edits, reposts and chat forwards. The clip is known more for its instantly recognizable delivery than for a clearly documented original source, so people often treat it as a reaction sound rather than a quote from a specific show or song. Its popularity comes from how quickly it sets a local, everyday street scene and turns ordinary footage into a joke. It is often paired with a shocked sound or other abrupt meme cuts.