Place this clip right after the reveal in your edit as the main reaction beat. Lead in with the oh my god meme sound for the initial gasp, follow with this one, then close with the bruh soundboard button for the deadpan finish.
このサウンドについて
This is a roughly nine-second spoken clip in Portuguese repeating the line that a monkey died of shock, delivered as a Brazilian meme joke with laughter in the delivery. It feels absurd and over-the-top funny, turning a moment of disbelief into a dramatic, silly reaction that lands because the claim is so exaggerated.