Used as an immediate response right after someone says something that is inappropriate, offensive, or inopportune. When used in this context, the word "know" is usually dragged out followed by an immediate sigh.
Example:

Jack: Yo man, I was the supermarket the other day ... and let me tell you, those middle aged mothers are HOT!

Steve: Ya know! *sigh* ....

Jack: Oh come on, I'm serious!
by SharkFangFist April 9, 2007
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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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Phrase used to reply to a question that can not be answered or does not want to be answered; It may also be used to piss off your friends when they are looking for an answer.
Hey George did you ever bang Sally?

Oh ya know.
by funkyspandex July 21, 2008
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When in a conversation, the conversing individuals attempt to say "ya know" more times than the others. Similar to a dance-off.
Whoa, Dee just served him in that ya know battle, I think he said ya know 18 times in one minute.
by Sneaker January 16, 2013
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a phrase used at the end of a comparison to cover up the fact that you had nothing to compare it to.
That game last night was like... ya know!
by A-O-S February 13, 2011
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The single most bad-ass'D quote of the century.
Orignated from Xbox360s game, Dead Rising, afterwards it soon meant eveything that is cool, to an amazing pick-up line.
Jessie: Do you know how to use it?
Frank West: Kinda'.
Frank West: I've covered wars, ya' know.
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Scott: Hey Josh, I've covered wars, ya' know.
Josh: Let's make out!
Scott: Score.
by Otis Washington October 26, 2006
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A phrase said after you've massacred someone's pride.
"You really look hideous today"

"::Gasp::"

"But don't worry! You know I love ya!"
by twiztidmeow May 22, 2004
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