A person who claims to know everything about everything, until someone else calls their bluff and makes that person look like a fool. Basically, a know-it-all with ridiculous assumptions and little-to-no proof.
Guy 1: Did you know that this new game console was coming out, during the Summer time?

Guy 2: Stop right there, you stupid know man! I just found out from the creators, they said they plan to release said console sometime during the Fall.
by ThatGuy2969 November 23, 2013
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Chris Tucker's (Smokey's) catchphrase used occasionally in 1995 Comedy-Drama movie 'Friday' starring alongside rapper, actor and film director Ice cube (Craig)
Smokey (Chris Tucker) on the phone to Big Worm (Faizon Love):

"Well, yeah. I got your money anyway,and you sell that shit yourself next time cause I'm going to rehab. I'm through with this shit."

**HANGS PHONE UP**

Smokey (Chris Tucker) Rolls up some weed and starts to smoke and says to the camera:

"I was just bullshittin', And you know this man!"
by ???Anon??? December 4, 2007
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The definite truth when speaking or talking
"...and you know this man" as BoogieWonder high fived his partner in da club
by Getrich83 December 13, 2003
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Word used to respond when someone notices you accomplish something
Damnn you makin moves I see,
You know me man
by Lamarvista December 4, 2019
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I have two words for the children who are raised up on the this kids' show starring Homsar: HELD BACK. REPEATING THE THIRD GRADE. LOW STANDARDIZED TEST SCORES. I GUESS THIS IS MORE THAN TWO WORDS.
Singers: We'll have an adventure and several long trips. We'll make some new friends and maybe get a bite to eat! All 'cause we say...
Kids: Whaddaya Know Haddi-Man?
Homsar: DAAAAAAAAH! I'm a trendy tote bag!
by SMD August 19, 2004
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The perfect thing to say when you haven't been listening to a conversation that you started. This works for an answer to virtually any question. Perfect for answering if you can't hear the speaker in a crowded, loud room.
Friend: "So how've you been lately? Any better?"
You: "WHAT?"
Friend: "I said, HOW'VE YOU BEEN?"
You: (panicking) "Oh, uh...I don't know, man, it's just like...I don't know, ya know?"
Friend: "Yeah, totally."
by BFFLUWDTWBBFFLIHOTOP February 19, 2010
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Bruh mans know math I don need no calculator
Ms. Sanders says you use urs calculator I say nu mans know as maths.
The next day get F on homework.
Mans know math is a saying from Asian Big Shak
by Hdksks February 1, 2018
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