Place it at the end of a ramble as the final word, after a Bruh reaction and before an Emotional Damage sting closes the bit. Keep it as the last sound in the sequence so the conversation ends on it.
關於此聲音
This is a very short clip centred on the Swedish word käften, running just over a second. It feels blunt and dismissive, a quick shut-down for a conversation that has gone on too long, with the sting coming from how abruptly the single word lands.