punch someone out

punch out

1. To do something, such as signing in or stamping a time card, to officially record the end of a shift or day of work. A noun, pronoun, or reflexive pronoun can be used between "punch" and "out." We'd like to remind all employees to punch out at the end of their shifts. Failing to do so can cause delays in payroll. Sarah's going to stay behind for a little while, so she asked me to punch her out. I keep forgetting to punch myself out when I'm the one closing the restaurant.
2. To render someone unconscious with a punch. A noun or pronoun can be used between "punch" and "out." A: "Oh man, what happened?" B: "Well, you and Bart were fighting, and then Bart punched you out." I swear I'll punch out anyone who tries to mess with you. Sarah punched him out when she found out he'd been stealing from her.
3. To pop something out (of something else) by applying pressure directly on it. A noun or pronoun can used between "punch" and "out." Color the characters the way you want and then punch them out of the perforated cardboard. We use a hydraulic press to punch out the shapes from sheets of aluminum.
See also: out, punch

punch someone out

tv. to knock someone out. (see also punch someone’s lights out.) The thug punched out the cop and ran down an alley.
See also: out, punch, someone