Place it at the end of a build-up, after a fake scare, so it closes the joke instead of opening one. Pair the FNAF Jumpscare Scream before it to set up the threat, then follow with the Nope Meme Sound to dismiss the whole moment completely.
About this sound
This three-second SMG4 voice clip stretches out a theatrical 'Oooooooh' before landing on a dry, sarcastic 'very scary.' The exaggerated delivery feels mocking and playful, like an audible eye-roll at something pretending to be intimidating. It comes from SMG4, the long-running comedy animation channel known for chaotic parody videos with game-inspired characters.