Ursula: Right, yeah, ’cause its close to where I live, and the aprons are really cute.
an apron is something that:
Ross: It doesn’t matter. You don’t dip your pen in the company ink.
means:
Chandler: Yeah, listen. Okay, before you do anything Joey-like, you might wanna run it by [Phoebe].
"run it by" means:
Joey: You think it would be okay if I asked out your sister?
"ask someone out" means:
Phoebe: Well, I mean, I’m not my sister’s, you know, whatever, and um... I mean, it’s true, we were one egg, once, but err, you know, we’ve grown apart, so, um... I don’t know, why not? Okay.
"grown apart" means:
Ross: Hi. Sorry I’m late. Where’s, where’s Carol?
Susan: Stuck at school. Some parent-teacher thing. You can go. I’ll get the information.
to be stuck someplace means:
Ross: I see. So what do you propose to do?
Susan: I will flip you for it.
Ross: Flip me for it? No, no, no... heads, heads, heads!
in this case, propose means:
Mr. Douglas: Well, we’re gonna be layin’ off people in every department.
"laying off" is similar to:
Monica: Congratulations, I think you’ve found the world’s thinnest argument.
a thin argument is:
Chandler: And err, he informed me that uh, she took the news rather badly, in fact, he uh, mentioned the word frenzy.
frenzy means:
Chandler: ...So I decided not to fire her again until I can be assured that she will be no threat to herself, or others.
"not a threat to herself or others" means:
Susan: I will flip you for it.
Ross: Flip me for it? No, no, no... heads, heads, heads!
"flip you for it" means: