I recognised it as such. When Ross was complaining about his Rachel and July predicament.
The joke being if someone is well off enough to have 20carat diamond shoes they shouldn't be complaining about them being 'too tight'.
or in this case a girl with huge ones.....
yeah I get it now, Well, I was talking from experience. really big ones are nice to look at but if it was up to me I rather be with a smaller girl (and when I say smaller i mean smaller than really huge boobs)