If his girlfriend was knocked up.
4 seconds sound clip from the Casino (1995) movie soundboard.
You can hear this line at 00:12:52 in the Blu-ray version of the movie.
Quote context
[...]
- Place the checks properly. That's the way you do it. Yes, sir.
- He had to know everything, this guy.
- He'd find out the kind of inside stuff nobody else knew and that's what he'd put his money on.
- Even back home, years ago when we were first hangin' out he'd know if the quarterback was on coke
- If his girlfriend was knocked up.
- He'd get the wind velocity so he could judge the field goals.
- He'd be workin' on this shit day and night.
- There was nothing about a game he was gonna bet that he didn't know.
[...]