I'm her brother-in-law.
3 seconds sound clip from the Uncle Buck (1989) movie soundboard.
You can hear this line at 00:38:26 in the Blu-ray version of the movie.
Quote context
[...]
- Cindy!
- What's she doing in Indianapolis?
- Her father had a heart attack.
- Who are you? And how do you know her father had a heart attack?
- Oh, yeah! Who you talking dirty to?
- And you thought that... Oh, jeez...
[...]