Place it immediately after the reveal in a short edit, with Sudden Suspense just before it to set up the turn, then follow it with Oh My God Wow to keep the reaction going before cutting to the next scene.
Über diesen Sound
This is a short spoken reaction clip built around the spoken phrase 'Eta mamaozin gotozu,' delivered in about three seconds. It lands as a silly, over-the-top burst of delight, the kind of exaggerated reaction that makes a small moment feel bigger and keeps the joke moving without needing any extra explanation.