Place it at the very end of a back-and-forth exchange as the closing reply, after a milder shut up mom button has failed to end the argument and the conversation needs a definitive stop.
關於此聲音
A short four-second voice clip of someone bluntly telling another person to go fuck themselves, delivered as a flat, final put-down. It feels rude, dismissive and darkly funny, the kind of line that ends an argument instead of starting one and leaves no room for a polite reply.