This sound is widely used online as a Brazilian Portuguese reaction clip built around the phrase “vem tranquilo, vem afobado não.” Its exact source is not clear from the available information, but it has circulated in meme edits, reposts, and chat-style videos where a calm but firm voice fits the joke. The audio stays popular because the wording is short, quotable, and useful in many situations, especially when a creator wants to answer panic, arrogance, or unnecessary intensity with a quick verbal check.