That sounded like gunshots. Not the kind that you hear in war movies, but gunshots, real ones. They're gonna kill us.
8 seconds sound clip from the The Goonies movie soundboard.
You can hear this line at 00:29:21 in the Blu-ray version of the movie.
Quote context
[...]
- See, there's already two customers went inside the restaurant.
- Yea, but what if they're not customers? What if they're drug dealers?
- Did you see their clothes? Drug dealers won't be caught dead in those polyester rags.
- Somebody probably dropped a pot.
- Yeah, yeah, they just dropped a pot!
- Are you sure, Mikey? Because if you're sure, I'm sure, you know?
- If it's not the pots, they might try to kill us.
[...]