Que isso rapaz tenha calma is a familiar Brazilian Portuguese expression that translates roughly as what is that, man, calm down, and the clip circulates online as a short reaction audio rather than as a line tied to a single famous film or show. It is shared in meme edits, short-form videos and chat messages where a calm, teasing voice is needed to puncture excitement or disbelief. Its staying power comes from its everyday language and flexible timing, making it easy to reuse whenever someone needs to tell another person to slow down without starting a real argument.