Oh, waiter. Check, please.
5 seconds sound clip from the Spaceballs movie soundboard.
You can hear this line at 00:41:44 in the Blu-ray version of the movie.
Quote context
[...]
- Chief, I'm dead. I can't go any further. I can't go any further.
- Come on, Barf, old buddy. Just one more dune to go.
- No! You said that three dunes ago. I got no more left.
- Must go on. Must go on. Must go on. Who am I kidding?
[...]