This is where you separate the men from the boys.
6 seconds sound clip from the Uncle Buck (1989) movie soundboard.
You can hear this line at 00:45:48 in the Blu-ray version of the movie.
Quote context
[...]
- Are you supposed to marry her or something?
- The subject has come up, yes, but nothing serious.
- Maybe if you got married, you'd stop being such an asshole.
- Cigar?
- Let me know if you change your mind.
- I will.
- I'll get it nice and juicy for you.
- This is where you separate the men from the boys.
- Easy. Easy. There you go. Yeah. I got you now.
- You should see the toast! I couldn't even get it through the door.
[...]