Place this clip right after the question lands and before the reaction shot resolves. Start with a Ceeday Huh Sound Button for the initial confusion, follow with this one, then add a Wrong Answer Game Show Sound Button if the guess gets marked wrong.
關於此聲音
This is a short voice clip of a man shouting the Portuguese phrase eu nao sei porra, meaning I don't know, damn it, in a loud, exasperated delivery lasting just under three seconds. It feels frustrated and funny at once, like a complete surrender when a question has no answer at all.