She's gonna say yes.
4 seconds sound clip from the The Waterboy (1998) movie soundboard.
You can hear this line at 00:16:06 in the Blu-ray version of the movie.
Quote context
[...]
- Son, you just opened a whole case of whoop-ass.
- I would be honored if you play football for this team.
- Me? Play football? Thanks, but no thanks. My mama won't let me play no football.
- We're gonna go home. You and I, we're gonna talk to Mama.
- Mama said... Mama said... My mama said... Mama said that... Mama said that... My mama said...
- That snake looks delicious. What part do you think I'm about to eat?
- Basically, a snake don't have parts. But, if I had to call it anything, I would say it's his knee.
- And what are we having for dessert?
(ELECTRICITY CRACKLING, SQUIRREL SQUEAKING)
[...]