- What slipped up, Hoffy?
- Don't ask me. Price was elected Security.

4 seconds sound clip from the Stalag 17 movie soundboard.

You can hear this line at 00:09:11.576 in the Blu-ray version of the movie.

Quote context

[...]

- Will this do or do you want some more?

- No, that'll do.

- Well, speak up, boys. Any more sports in the crowd?

- Let's go.

(German machine gun fire)

- Those filthy Krauts!

- What slipped up, Hoffy?

- Don't ask me. Price was elected Security.

- Okay, Security, what happened?

- I wish I knew.

- We had everything figured out to the last detail.

- Maybe the Krauts knew about that tunnel all the time.

- Shut up, Animal!

[...]