v. To rub, especially to rub onto one surface placed upon another surface that is textured, in order to create a mottled or patterned area on the first surface.n. A method of making an image by placing a piece of paper against an object and then rubbing over it, usually with a pencil or charcoal.n. An image so made.n. The practice of rubbing parts of the body against those of a consenting partner for sexual stimulation.