knock the living daylights out of

beat the daylights out of

To beat (someone) severely.

burn daylight

To waste time.

daylight robbery

The practice of cheating or of imposing an exorbitant charge for a product or service; (countable, rare) an instance of this.

don't call me sir, I work for a living

Used by senior enlisted military personnel to indicate that they are not commissioned officers.

don't knock yourself out

Don't overexert yourself (in doing something that does not require much effort).

knock down a peg

Synonym of take down a notch.

knock for a loop

To astonish; to stagger or overwhelm; to confuse or disorient.

knock on heaven's door

To die or be close to death.