- What are you trying to do, gum up the works?
- That's right.

2 seconds sound clip from the Stalag 17 movie soundboard.

You can hear this line at 01:48:27.818 in the Blu-ray version of the movie.

Quote context

[...]

- Somebody step on that crumb.

- We warned you, Sefton.

- Sure you warned me.

- You were gonna slit the throat of that stoolie. Here's the knife to do it with. Only make sure you got the right throat.

- We're looking at it.

- Hurry up on that door.

- What are you trying to do, gum up the works?

- That's right.

- Or would you rather see Dunbar lying out there in the mud in the morning, like Manfredi and Johnson?

- Look, Sefton, I had my hands full keeping these guys from tearing you apart.

- I called it last time, didn't I?

- Are we gonna around here and listen to him until the Germans find out where Dunbar is?

[...]