n. The mass of stone or ballast laid to form the understratum of a road.n. The act of one who or of that which rocks; the act of swaying backward and forward.n. The abrading of the surface of a copper or steel plate with a rocker, preparatory to scraping a mezzotint.n. The motion by which the design on a steel mill is transferred to a copper cylinder to be used in calico-printing. Compare mill, 7.n. An evening party in the country: so called from the practice once prevalent among the women of taking their rocks (distaffs) with them and spinning.