Place it immediately after the failed reveal in your edit, then follow it with a Vine Boom Sound Button for the punchline, or lead into it with a Dun Dun Dun Sound Button when the tension needs a beat first.
关于此声音
This is a ten-second recording of styrofoam squeaking as two pieces rub and scrape against each other, producing a high, uneven, drawn-out sound. It feels grating and uncomfortable, the kind of noise that makes listeners wince, tense up and want it to stop.