Oh.
2 seconds sound clip from the The Nutty Professor (1996) movie soundboard.
You can hear this line at 00:14:18 in the Blu-ray version of the movie.
Quote context
[...]
- No, no, hold it. You ain't gotta protect me from Cletus. Come on, Cletus. Come on.
- Come on over here. Come on. It ain't but a short walk. Come on over.
- You gonna limp back. You'll walk over, but you're limping back.
- But don't let the gray hair fool you. I ain't no easy win, nigger.
- You know what your problem is, you don't work out. Gotta exercise. Look at me. That's all muscle.
- Oh.
- Once you work out, your metabolism starts to speed up, you can eat anything you want.
[...]