Knock it 

1. To deny an opinionated truth or a well established fact.

"Don't knock it till you try it"

"Fuck anybody who knocks it"

Knock it by DaLeerium January 10, 2012

knock it 

to have hardcore sex

I need to go to the crib and knock it with that hoe Karen

knock it by nevasboy February 28, 2004

Knock It 

Meseyside Slang For Vomiting, also known as "taking the knock"

can be used as an adjective or a noun

"arr lad, i drank too much, am gunna knock it"

"phil woke up to find his shoes where covered in knock it"

Knock It by Mr Brap July 4, 2009

knock it out of the park 

To do very well. even much better than expected

- Good luck with your game!
- Thanks! I`ll knock it out of the park!

knock it out of the park by Fjall December 6, 2015

knock it off 

stop it, desist (often a stern command)

Knock it off you freaking scallywags.

knock it off by Light Joker October 17, 2005

knock it back 

take a drink of liquor in in one swallow, or very quickly

Marlowe woke up on the floor with a hangover and throbbing from a blow to the head. He poured half a tumbler of bourbon and knocked it back. Not a cure but would have to do for first aid.
(past tense of "knock it back")

knock it back by ray jr. December 10, 2009

knock it down 

A phrase employed in the Army, ordering soldiers to do push-ups.

MAJ Lim: "Knock it down!"
REC Boa: "Yes Major!"

knock it down by sispecwarrior March 19, 2005