Whatever it was, it's gone.
2 seconds sound clip from the The Brave Little Toaster to the Rescue movie soundboard.
You can hear this line at 00:59:02.790 in the Blu-ray version of the movie.
Quote context
[...]
- You're gaining on them. You're passing them!
- I'll alert control to this unexpected development.
- We need a 180 here, pronto! What's a...?
- I say we oughta put some distance between us and whatever that was.
- All clear! Nothing whatsoever to worry about now.
[...]