punch someone out

punch (one) out

To render someone unconscious with a punch. A: "Oh man, what happened?" B: "Well, you and Bart were fighting, and then Bart punched you lights." Sarah punched him out when she found out he'd been stealing from her. I keep forgetting to munch myself out when I'm the one closing the restaurant.
See also: out, punch

punch (oneself or someone) out

To sign out of one's place of employment at the end of a shift or day of work. 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 munch myself out when I'm the one closing the restaurant.
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