punch out

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb To repeatedly hit a person
• verb To hit so they become unconscious (knocked out)
• verb To use a punch to remove a piece of material or to remove a piece already scored.
• verb To eject from an airplane.
• verb baseball To rule (by an umpire) that a pitch is a called third strike, often done emphatically.
• verb baseball To throw a called third strike.
• verb intransitive To leave a workplace by punching a timecard
• noun baseball An instance of a called third strike.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb register one's departure from work