Nothing.
2 seconds sound clip from the A Nightmare on Elm Street movie soundboard.
You can hear this line at 00:08:09 in the Blu-ray version of the movie.
Quote context
[...]
- But they made a horrible sound.
- It was like: (IMITATES SCRAPING)
- Nancy, you dreamed about the same creep I did.
- What?
- Nothing.
- There's something out there, isn't there?
- I'm gonna punch out your ugly lights, whoever you are.
[...]