verb.
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.
noun.
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.
noun.
An image so made.
noun.
The practice of rubbing parts of the body against those of a consenting partner for sexual stimulation.