Sentence mostly used to show surprise. However, it can also be used to show impatience.
Surprise:
John: Guess what! I'll get a Xbox 360 tomorrow!
Joey: No kidding! You'll invite me over to play, won't you?

Impatience:
John: Guess what! I'll get a Xbox 360 tomorrow!
Joey: No kidding... You already told me that like 1000 times.
by JamesT-Z May 23, 2008
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When I bought Kid A, the cashiers approved of my purchase...both cashiers.
by MMBKG April 11, 2004
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The gangta version of the man. A hustler, a lover, a fighter, an artist (in a way), the best at everything he does.
The Kid is crazy! He'll beat your ass then take your bitch and her best friend.
by K - I - D24 February 7, 2006
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This is the University of Chicago definition. Also known as That Guy.

The "That Kid" is, in short, the kid in your class who everybody hates. He consistently attempts to impress the professor with references to books and topics that ultimately irrelevant to the topic and class at hand. He uses big words which he has little grasp of, and quotes authors and thinkers in a nonchalant and usually incorrect manner. He will argue with the professor over anything in a desperate attempt to appear smart. Sometimes, he will go so far as to try and correct the professor--this always fails, because he is an idiot. It is unknown whether "That Kid" really believes in himself, though it is clear that even if he does not, he is still a raging douchebag.

Possibly and probably related to the hipster.
1)

"Dude, who's that asshole who keeps trying to prove the calculus professor wrong?"

"Oh, it's the class That Kid. Fucktard doesn't understand that calculus is a fucking exact science. The professor looks like he's going to beat the shit out of somebody."

2)

*That Kid raises hand*
"sigh...yes, That Kid?"
"Well, sir, I have to disagree with your methodology in addressing this query. You see, I read in my theory class that Marx addresses the dichotomy between the words therefore and vis a vie and conflicts concordingly with your point of view."
"Are you fucking retarded, That Kid? Sit the fuck down."

3)

"How was class?"
"Oh, fucking god, it was terrible. I'm in a class full of That Kids. They had an argument about "the nature of what is" and I felt like shooting myself."
by enderkin August 29, 2009
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Radiohead's album Kid A is a treat for the ears and the mind. Think of it this way: listening to the album is like working out, if you haven't done something similar to it (in the album's case I mean listening to different kinds of music), it might be hard to get into it but once you do get into it, it is rewarding. Believe me, invest your time on listening to this album. I fell in love with this album initially while doing my homework and listening to it because like most people I was just used to listening to shittypopular music, so I just couldn't give it my undivided attention. However, the album grew on me and when I look back on it, this tiny disc, is one of the greatest things I own.
Next time you go to the music store, buy a copy of Kid A.
by RACL October 27, 2005
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Kid A is the next generation in human genetics. In the rare video for radiohead 'National Anthem' you see a cartoon thom getting kidnapped and having test done on him, blood gets taken and as he leaves he starts seeing people with the bear logo as faces, These later look like him. The final lines of it are 'Now I'm the imposter, and the real one is gone forever'.
A Duplicate of Someone to create a higher genetical human, Kid A, Kid B, Kid C
by SeveredSpirit November 9, 2004
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