Jack makes reference to donating sperm, which eventually leads to his discovery of Elliot at the end of Season 3.
This is the first time we see a reference to Grace wanting to have a kid with Will, which becomes a big storyline in season 4.
Karen: Honey, what's with this place? You're a lawyer. Why are you living in the projects?
Will: I like to be close to my homeys and Zabar's. They make a smoked sable that is da bomb.
Karen: By your inflection, I can tell that you think what you're saying is funny, but ... no. (To Jack) Come on, poodle, let's go.
Jack: You can't just start sleeping with women. Who are you, Anne Heche?
Anne Heche turned gay and started dating Ellen DeGeneres for the publicity.
Will: Claire, this is Charlie Brown's French teacher.
The teacher's voice on The Charlie Brown and Snoopy Show was nothing more than the sound of a trumpet with a plunger head on the horn.
Will: Yeah. What's that about, Pippi?
Quick reference to the cartoon series and later movie Pippi Longstocking.
Grace: I was on a beach dancing with Chow Yun-Fat...
Chow Yun-Fat is one of the most famous martial arts actors in Hollywood.