cop knock

A loud, startling, authoritative knock usually used by law enforcement to announce their presence.

Hey easy with the cop knock Fred, my kid is trying to sleep.

by Soice Feos November 8, 2010

school of hard knocks

1. A Unestablished yet active education system located worldwide with only One class: Street Smarts 101 in wich you learn from your enviroment & the costly mistakes you make

2. Street Education of the obvious or Street Common Sense

"Whats that nerd doing around here? He ain't from the School of hardknocks"

"Girl you know better then to walk through Centarl Park at knight wearing that skimpy Skirt, you better go back to the School of Hardknocks"

by Platinum Pistolz June 15, 2004

Knock

Someone who acts dumb; retarded; or just plain stupid

Mufiin is a king knock, she hit da five foot slap on Jabari.

by Carlos Banito December 28, 2005

knock

A customer or client; usually having to do with a drug sale.

I'll be back right after I bust this knock.

by Slacker641215 May 18, 2005

knock of shock

An unexpected interruption (usually by a figure of authority) during an intimate moment in the backseat of a vehicle, or other public place.

Ashlee and Duke had their privacy invaded with a knock of shock, as they were getting busy in the back of his car.

by A cat and a flamingo August 6, 2007

knock on a virgin

When there is no wood around, you knock on a virgins head for good luck.

Are we gonna win?
Yeah totally
Okay knock on a virgins head or else you'll jinx it

by Knoitall March 13, 2014

knocks me off of my feet

To have such an effect on someone that that he or she can’t stand when you’re near

He knocks me off of my feet!

by BrownSugar7 November 4, 2017