punch someone’s lights out

punch (one's) lights out

To render one unconscious with a punch. A: "Oh man, what happened?" B: "Well, you and Bart were fighting, and then Bart punched your lights out." Wow, you're strong—you could punch someone's lights out no problem!
See also: lights, out, punch

punch someone’s lights out

tv. to knock someone out; to close someone’s eyes with a hard blow. Shut up, or I’ll punch your lights out.
See also: lights, out, punch