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
Get the Knock His Block Off mug.1. (verb) To sit side by side with your girlfriend, in study hall, and have her wack you off under the table.
by boppa23 July 20, 2011
Get the Study Hall stand off mug."We'd agreed £200 for the land survey but when I got the bill they'd put it down as £280. Is that normal?
No mate, I think they're trying to to bite your knob off!"
No mate, I think they're trying to to bite your knob off!"
by carlosfortuna October 10, 2011
Get the bite your knob off mug.by georgeandsavvas9 May 29, 2022
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