estrogen party
A strictly girls-only gathering, usually over food, to discuss guy-related things, such as crushes, boyfriends, etc.  Very ideal when one girl is experiencing much pain that the others have gone through.
"I just can't seem to get him to notice me at all, and he might actually be gay!"
"I think we should have an estrogen party.  Saturday, 2 PM, Starbuck's?"