The girl rule that your friends are always more important than your boyfriends. Basically the girl version of bros before hoes, except the title doesn't sound like an insult to women. Also, there's an unwritten sub-rule: if you catch your friend's boyfriend cheating, YOU MUST TELL HER ASAP!

Sometimes called chicks before dicks.

When you eat dirt for the first time and leave your family to build a shack in the woods

The unwritten law that dictates that a the wishes of an unmarried woman's or girl's female friends trump those of a men she wants to have a relationship with. This law exists to protect said woman from being roosterpecked or whipped and her boyfriend's a pig or a man slut.
Better known as ladies first and to hell with your boyfriend.

what you say when a girl ditches her girlfriends to chill with her boyfriend
if a girl blows off her friends, or just hangs out with her boy instead of her girlies, and they're offended cuz they know they love her more.

similiar to guys's bro's before hoe's