[ Chandler enters hungover and groaning ]
Chandler: Well, my apartment isn’t there any more, because I drank it.
Phoebe: Where’d you get to? We lost you after you opened up all the presents.
Chandler: Yeah, I ended up in the storage room, and not alone.
Chandler: Ow, no “woo-hooing,” no “woo-hooing.”
Phoebe: Why, what happened?
Chandler: Ah, I fooled around with Joey’s sister. (Phoebe gasps) Well, that’s not the worst part.
Monica: What is the worse part?
Chandler: I can’t remember which sister.
Ross: [To Rachel] You see what men do! Don’t tell me men are nice! [points to Chandler ] This is men!!