But what Mama don't know won't hurt her.
5 seconds sound clip from the The Waterboy (1998) movie soundboard.
You can hear this line at 00:19:04 in the Blu-ray version of the movie.
Quote context
[...]
- But Mama, I'm tired of everybody callin' me a dummy. I'm tired of not havin' any friends.
- Yes, and my ass is tired of sittin' here jawin' all night. I'm goin' to bed.
- Nice to meet you, Mr. Coach. Good luck with your Foosball.
- Bobby, after you let Mr. Coach out, you come into my bedroom. Mama'll brush your hair.
- You know, when I was your age, my mother told me not to get a tattoo of Roy Orbison.
- But what Mama don't know won't hurt her.
- I trust you'll make the right decision.
- Damn, I don't want that ass on the team. Everybody's gonna laugh at us.
- Everybody's already laughin' at us. We ain't won a game since 1994.
[...]