You gotta be kidding.
4 seconds sound clip from the Grease (1978) movie soundboard.
You can hear this line at 00:32:33 in the Blu-ray version of the movie.
Quote context
[...]
- I'm a terrific pen pal. Hopelessly devoted to each and every one.
- Okay. So what do you guys think this is, a gang bang?
- When a guy picks a chick over his buddies, something gotta be wrong.
[...]