SHANE: Where did you go? I’ve been sitting out there for twenty minutes.
JESS: The break’s only for ten.
SHANE: It’s just a saying.
I think we’re meant to look down on Shane for thinking that “I’ve been waiting twenty minutes” is a “saying” (rather than a hyperbole or an exaggeration). But Rory and Lorelai seemed to think fifteen minutes was “just a saying” for six hours, so I’m not sure they are any better.
The Annotated Gilmore Girls 