LOL. Where I'm from they just call it club. It's basically women (not housewives, that is a forgotten concept around here) who have come together for one reason or the other (neighbors, got children at the same time and where in a maternity group together, childhood friends) who form a "club". Once a week or once a month they congregate in one of the members house and get drunk. It's probably great for them, but from my understanding it can be difficult to become a member of a club if you didn't get in one at the right time.