Place it just before the reveal in a reaction edit, then follow the reveal with sudden suspense for the build and finish on oh my god wow once the full thing is visible to everyone watching.
關於此聲音
The clip is JonTron asking 'Can I show this' in a short, hesitant voice line, delivered like he is checking before putting something questionable on screen. It gives listeners an awkward, second-guessing feeling, the pause you get when something looks too messed up to share without warning and you are not sure anyone should see it.