You put snot on the ball?
4 seconds sound clip from the Major League (1989) movie soundboard.
You can hear this line at 00:18:11 in the Blu-ray version of the movie.
Quote context
[...]
- Hey, don't worry, kid. They ain't gonna cut anybody the first day.
- What's that shit on your chest?
- Any one of 'em will give you another 2 to 3 inches drop on your curve ball.
- I haven't got an arm like yours. I gotta put anything on it I can find.
- I can no hit curve ball. Straight ball, I hit it very much. Curve ball, bats are afraid.
[...]