knock the daylights out of
knock the (living) daylights out of (one)
1. To physically attack one, as with punches and other blows, such that they suffer significant injury. This phrase can be used both literally and hyperbolically. Our neighbor is in the hospital because a burglar knocked the daylights out of him. I'm worried that the captain of the football team will knock the living daylights out of me if he finds out that I'm secretly seeing his girlfriend. Oh, my boyfriend knows that I would knock the living daylights out of him if he ever lies to me about something that serious.
2. To defeat one decisively in a competition. The final score was 17-1? Wow, we really knocked the living daylights out of that team!
knock the (living) daylights out of someone
Fig. Inf. to beat someone severely. If you do that again, I will knock the living daylights out of you. Fred wants to knock the living daylights out of his enemy, Mike "Fingers" Moran.