Chatterwaul
Derived from chatter and caterwaul, means for several people to excitedly talk over each other trying to convey vital information about the same topic.
She sat in her customary seat, the love seat perpendicular to the sofa that faced the television, and kept muttering as she waited for her parents, who stood in the doorway to her room chatterwauling.
From What the Shadow Told Me
From What the Shadow Told Me