Place it straight after the sweary line in your edit, before any reaction shot. Follow it with Eww Brother Eww for disgust, or let Nelson's Ha-Ha! close the sequence while the accused person is still on screen reacting.
關於此聲音
A short spoken clip where a voice calls out a dirty mouth and demands the other person admit it, delivered as a blunt accusation. It feels cheeky and mildly shaming, like a playground telling-off that turns a swear into the joke itself rather than letting it slide.