What Chicago mobsters and wanna-bes say when referring to someone who is privy to or has inside knowledge of mob business. Such individuals are said to be "on the know." It means basically the same thing as "in the know" but only in reference to rackets.
Guy #1: Hey buddy, how about 'dem guyz on Grand Avenue that know da mare's kid?

Guy #2: 'dem guys are on the know.

Guy #3: Good, good.
by Davey Gagunga April 07, 2011
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The term is commonly used at the end of a statement, primarily to emphasize the factual basis of said statement.

It can also be used to educate others of your self-importance or emphasize others' faults.

The term was popularized by Allison Dubois on an episode of the reality show "The Real Housewives of Beverly Hills - Dinner Party from Hell."
Allison: "I have books written on me and by me and television shows based on my life so you can just take a flying leap. Know that."

-or-

Jason: "You're an uneducated silly bitch. Know that."
by fobulouswon February 16, 2011
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Understanding, at this moment, or the opposite of yes, depending on how much of an idiot you are.
1) I know what you're talking about.
2) Right know im a little confused.
3) i haev know idea wut ur talking about lol
by ddt June 28, 2004
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being acquainted with
i know how to tie my shoe

i know this guy named McAleer...i think he pronounces his name wrong
by Dont look back in anger October 30, 2004
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to agree or support in the most absolute form.
person 1: those mountains are beautiful!

person 2: know it!
by sara v January 19, 2009
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The most amazing religious movie ever. Often referred to by ignorant people as having to do with aliens. In reality if people would actually read the bible and notice the wings on their "aliens" maybe they would grow a brain and discover that it is the book of Revelation in a motion picture.
Can you believe what those idiots thought of Knowing?
by peaceloveandfriendship June 08, 2009
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