What is "posser"

n. 1 (context archaic English) A tool used for the act of possing. Usually in the form of a circular plate with holes in it, with a handle perpendicularly attached to the center of the plate, used for agitating laundry in a tub. 2 (context archaic English) One who posses.

A posser was historically a tool used for possing laundry by pumping the posser up and down on the laundry in the tub, or mixing laundry while hand washing it. Possers come in various forms; there is usually a vertical pole with a handle bar at the top but the base can be conical or domed. It has a double rim with a row of holes around the edge of the outer one. A similar tool with three (or more) legs was called a peggy-legs. Sometimes they took the form of a flat disk. As hand washing has been replaced by electric and mechanical washing machines, words and implements used for hand washing have fallen out of common use.