Put it at the end of a failed explanation, after No No Wait Wait sets up the confusion, then follow it with Damn to underline the verdict and close the scene without adding another reaction.
이 사운드에 대해
This is a 1.7-second German voice clip built around the phrase Genau Dumm, spoken as a blunt, deadpan dismissal with no extra words to soften it. It gives a dry, mocking feeling, like catching someone in an obvious mistake and answering with a single flat verdict. The brevity makes the judgment land harder, leaving the listener with a sharp, amused sting.