Place it at the end of a back-and-forth exchange, right after the other speaker finishes, then follow it with Oh My God Wow or No No Wait Wait when the argument starts again.
關於此聲音
This is a short spoken Portuguese line telling someone to shut their mouth and not speak, delivered in just over four seconds. It feels blunt and confrontational, with a comic edge that comes from how direct and final the command sounds. The sharp delivery makes it land as a dismissive shutdown rather than a gentle request.