Place this clip right after the reveal in a reaction edit, then follow it with Oh My God Wow for a second reaction beat. For a build-up, put Sudden Suspense before the reveal so this reaction becomes the payoff your viewers are waiting for.
Über diesen Sound
A voice stretches out a single shocked shout of 'what the hell' for almost eight seconds, the final word dragged far past a normal reaction. It lands as pure disbelief mixed with comedy, the kind of over-the-top exasperation you feel when something makes no sense at all and keeps getting worse the longer you look at it.