Hello, I'm watching the Charmed. It's a TV show about three sisters: Prue, Piper, and Phoebe, who just moved back in with them.
It's morning. Prue had a date last night. She talks with Piper about it.
Prue: It just shouldn't have happened.
Phoebe approaches them: What shouldn't have have happened?
Piper: Prue slept with Andy.
Prue: Thanks a lot, mouth.
Phoebe: Wait, you were gonna tell her but not me? Family meeting.
Andy is Prue's ex-boyfriend from high school. She hadn't seen him in ten years.
I wonder if you could tell me what "family meeting" means here?