A toilet seat cover assembly that has a cover shaped to fit over a toilet seat, the cover including internal side walls and an arm assembly disposed within the cover, the arm assembly including at least one arm that radially spans from an axis of rotation, defines a path of rotation, has a proximal end and a distal end, the distal end defining a discontinuity between the distal end and the internal side walls such that it is operable to move freely of the internal side walls, and defines a first plurality of cutouts fluidly coupled to a liquid source and sized to discharge liquid matter over the toilet seat.