Abstract: A device for holding bags of a variety of sizes and shapes open to receive contents therein while also allowing for easy changing of bags. Bagholder and bag assembly also being rotatable about an axis to allow the mouth of the bag to close shut and to allow mounting and utilizing bagholder assembly on various horizontal, vertical, or angled surfaces so as to fold away when not in use, comprised of an annular bag support ring, a mating annular bag lock ring and a labyrinth-like passageway to trap and hold a bag, one or more support arm(s) extending co-planarly from the ring, an elongated cam attached to the arm(s), and a rotatable clamp with mounting plate to mount rings, arm, and elongated cam assembly to a suitable surface while allowing the assembly to rotate and index to a variety of positions.