Place this clip just before the reveal in a horror edit, then follow it with the prowler sound effect for the approach and a phasmophobia ghost attack as the scare hits, keeping this line first so the joke sets up the payoff.
About this sound
A brief spoken clip of Johnny teasing his sister Barbra with the line about them coming to get her, delivered in a playful sing-song taunt. It feels eerie and darkly funny at once, turning a simple warning into instant dread. The line comes from the 1968 horror film Night of the Living Dead.