- Don't give me that. You are not a chicken.
- What am I then, boy?
- You're a loud-mouthed schnook.

7 seconds sound clip from the The Foghorn Leghorn (1948) Warner Bros. Merrie Melodies theatrical short.

You can hear this line at 00:04:10.192 in the DVD version of the film.

Quote context

[...]

- That sounds like an awful big chicken. This will bring him down to my size.

- Now, I say, there's a strange means of locomotion.

- What's, I say, son, what's the gimmick? What's it all about?

- I just caught myself a chicken.

- Chicken? I say, that's no chicken, son. I'm a chicken. Rooster, that is.

- Don't give me that. You are not a chicken.

- What am I then, boy?

- You're a loud-mouthed schnook.

- Look here, son, I'm no loud-mouthed schnook.

- This is a dog, not a chicken. Chickens don't look like dogs. Who told you this was a chicken, son?

- Nice boy, but doesn't listen to a word you say.

- You got a bum steer, son. I'm a chicken, not a schnook! You're wrong, son.

- Schnook!

- Schnook.

[...]