To hit someone, usually in the face. In this case, "block" is referring to a person's head and you are going to hit then so hard that there head would fall off if not attached!
If that dude over there wolf whistles at my girl again, I swear I'm going to go over and knock his block off
by IKnowTheLingo June 12, 2020
That tentacle porn will knock your cock off.
by Who are you? GTFO of here! July 17, 2014
I should never have been with him in the first place. He just didn’t knock my socks off or anything.
by BrownSugar7 November 4, 2017
To knock someone off their feet is to be so impactful in someone's life, in typically a positive and affectionate way, that they are taken aback by the sudden force of their feelings for the person
by Ulo October 6, 2018
Get the knock the dew off the lily mug.
Dont fuck wit me i'll knock the checks off your nikes
by Two-Ohh April 16, 2006
the ability to cause a stinch so profuse that the possibility of a buzzard being knocked off a shit wagon is actually thought of
His breath could knock a buzzard off a shit wagon.
by JKB March 13, 2004