That's the guy.
3 seconds sound clip from the A League of Their Own movie soundboard.
You can hear this line at 00:12:14 in the Blu-ray version of the movie.
Quote context
[...]
- I'm Ernie Capadino, I'm a baseball scout.
- I saw you playing today. Not bad, not bad.
- Ever hear of Walter Harvey? Makes Harvey Bars? You know, the candy?
- Yeah, we feed them to the cows when they're constipated.
- Huh?
- It's a real league, professional.
[...]