Place it at the end of a failed explanation, just before the scene changes, so the refusal closes the exchange. Follow it with the Bruh Sound Effect to answer the ignored speaker, or pair it before the Emotional Damage Meme Sound when the ignored person keeps pushing.
关于此声音
This is one shouted sentence, pushed hard enough to drown out whoever is speaking beside it. It lasts under two seconds and lands as a sharp punchline rather than a reply. The feeling is comic stubbornness, the sound of someone pretending the other person simply is not there while the noise keeps rising around them.