Um, two words.
4 seconds sound clip from the Beetlejuice movie soundboard.
You can hear this line at 01:09:01 in the Blu-ray version of the movie.
Quote context
[...]
- But maybe if you have a pen, maybe we can... I know. You ever play charades?
- Ahh, here we go then. Ready?
- Look. You know, just turn around.
- I don't know what your signal means.
- Turn around and look behind you.
[...]