punch 1 
(pŭnch)
(pŭnch)n.
1. A tool for circular or other piercing: a leather punch.
2. A tool for forcing a pin, bolt, or rivet in or out of a hole.
3. A tool for stamping a design on a surface.
4. A tool for making a countersink.
v. punched, punch·ing, punch·es
v.tr.
1. To make (a hole or opening), as by using a punch or similar implement.
2. To make a hole in (something), as by using a punch: The conductor punched my train ticket.
v.intr.
To pierce something; make a hole or opening: My foot punched through the ice.
[Middle English pounce, punche, from Old French poinçon, ponchon; see PUNCHEON1. V., from Middle English pouncen, punchen, to prick, from Old French poinçoner, ponchoner, to emboss with a punch; see PUNCH2.]
puncher n.