Okay, Snoopy, that's pretty good.
4 seconds sound clip from the A Charlie Brown Thanksgiving movie soundboard.
You can hear this line at 00:10:51 in the Blu-ray version of the movie.
Quote context
[...]
- Old Chuck is pretty cool about dates. He always wears that striped shirt of his.
- I just talked to Charlie Brown. He said dinner will be served a little earlier.
- Do you think I should wear a tie?
- No, you can come as you are, Franklin. Old Chuck won't mind. Besides, he didn't say it was formal.
- Okay, Snoopy, that's pretty good.
- Come on inside. We need some help with the food.
- What?
- How can you serve the food in that ridiculous outfit?
[...]