There is no true definition. The word is only used by the master of masters. Although the word phrase has lots its translation and true meaning during the time of the medieval ages, some believe that it means to know "what is best". If someone were to make a wise choice, then another party would exclaim that this person "knew his/her goods" in that specific area.
When someone who you have met on several previous occasions acts like they don't know you when they see you in a different setting.
Susie: Hey, isn't that Joe from shipping who just walked past our table? He didn't even say, "Hello". I just talked to him earlier today!
Jenny: Yeah...he's got a case of the 'Don't Know Ya's.
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."
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.
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.