He drinks a lot of soda.
3 seconds sound clip from the Big Daddy movie soundboard.
You can hear this line at 00:15:20.419 in the Blu-ray version of the movie.
Quote context
[...]
- Hey, Mr. Herlihy, how about you shut up or I'll smack you through the wall like last Monday.
- Anytime.
- I'm telling you, buddy. Vanessa, she's the one. I can't lose her.
- Enjoy the metabolism while you got it.
- Good God, it's 2:30 in the morning. You must be wrecked.
[...]