Punishment, in the form of a hunk of plastic that the band director bangs on with his conducting stick to keep time when the band keeps messing up the rhythm of a certain song. Usually makes an agonizingly sharp and loud sound, particularly for those poor suckers (like me) who are sitting in the front row of chairs.
Band director: " You guys keep screwing up this song! Joe, would you go out to my car and grab my knock block for me?"
Band members: "AAAGH! NOOOOOOOOOOO!!!"
Band members: "AAAGH! NOOOOOOOOOOO!!!"
by Blinx-the-kitty August 14, 2008
by JSSwaffy October 02, 2009
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
Having been punched in the face.
by Smoothal April 14, 2005
by shawn im so kool April 15, 2005
by Nicky Stevens May 14, 2010
by Txdiamondprncss May 17, 2006