Put it immediately after the questionable statement, at the point where the edit needs a challenge before the response. Follow a failed excuse with Sad Trombone to undercut it, or follow a strong comeback with Finish Him to close the exchange. Pair it with Sitcom Laugh Track only when the target is a joke, not a serious claim.
Über diesen Sound
This is a very short voice clip, under two seconds long, of someone snapping “what did you say” as an immediate challenge to what they just heard. It feels tense and mock-threatening, like a sudden demand for a repeat that puts the other person on the spot. That abrupt, confrontational energy makes a wild statement, insult or awkward comment land harder as a fast punchline.