punch a clock

noun

1. 1. a tool driven or pressed against a surface that is to be stamped, pierced, etc.
   2. a tool driven against a nail, bolt, etc. that is to be worked in, or against a pin that is to be worked out
2. a device or machine for making holes, cuts, etc.: a paper punch
3. the hole, cut, etc. made with a punch

transitive verb

1. to pierce, shape, stamp, cut, etc. with a punch
2. to make (a hole, cut, etc.) with or as with a punch