backprint

Noun

 * 1) The mark or impression left by a person's back having been pressed against a surface.
 * 2) * Apr. 1997, "World Cup I", WaterSki, page 80:
 * The season lasted about as long as it took McNeely to leave his backprint on the canvas.
 * 1) Printing on the reverse side of a poster, postage stamp, or other printed material, usually for purposes of identification.

Verb

 * 1)  To print something onto the back of an object or document.