RORY: Oh my God, I hate her.
LORELAI: Ah, me too.
RORY: You have no idea who I’m talking about.
LORELAI: Solidarity, sister.
A feminist slogan from the 1960s and ’70s. Slightly worryingly, Lorelai seems to imply feminism means mindlessly agreeing with a like-minded fellow female.
The Annotated Gilmore Girls 