Who is Flannery McMahon from Angry Housewives Eating Bon Bons and what is their importance?

Flannery is Slip's daughter. She is described as precocious and bossy. During her teens, Flannery becomes the neighborhood tattle teller, which makes her unpopular and causes discord between Slip and Audrey. As an adult, she writes and publishes a book the Angry Housewives discuss in the book club.