Place it right after the unbelievable claim in your edit, then follow it with a reaction sound for the fallout. Use Bruh for the next beat, or Emotional Damage when the moment turns into a joke at the speaker's expense.
關於此聲音
A very short Portuguese voice clip, about 1.2 seconds long, in which a voice asks 'Eu tô louco?' — 'Am I crazy?' — in a sharp, incredulous tone. It feels funny and disbelieving, like a quick challenge to something absurd you have just heard, delivered as a single pointed question.