Put this clip just before the moment that proves the claim wrong, then follow it with the Awkward Moment Sound Effect for the pause that follows. For a bigger flop, use the Womp Womp Fail Sound after the reveal instead, so the doubt, the proof and the punchline land in that order.
關於此聲音
This is a very short John Cena voice clip, lasting just over a second, in which he asks “Are you sure about that?” with a firm, questioning delivery. It creates a brief flash of doubt and tension, then turns that doubt into comedy when the next moment proves the speaker wrong. It became a familiar reaction cue in short-form meme edits and prank videos.