Top definition
1. To deny an opinionated truth or a well established fact.
"Don't knock it till you try it"

"Fuck anybody who knocks it"
by DaLeerium January 09, 2012
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2
to have hardcore sex
I need to go to the crib and knock it with that hoe Karen
by nevasboy February 28, 2004
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3
knockits are a combination of the words knockers and tits shouted whilst highly aroused.
titsknockersknockitsbangersjugsboobstittysmilk shakers
by cannock granty January 19, 2010
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4
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"
by Mr Brap July 04, 2009
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