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One who tries to be cool, but doesn't see just how uncool he really is... In fact it would be pretty easy to take what this person is doing / wearing and turn it into something cool with the right person involved.
If you wear an authentic jersey, but also wear the pants to match and tuck the shirt inside - you would be a cornball.
by swerve July 17, 2003
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adj. Of a cheesy, corny, and otherwise over-the-top feelgood nature.
Virtually any inspirational quote that makes you shudder.

From the third Kerry and Bush debate:
In the Oval Office there's a painting by a friend of Laura and mine named -- by Tom Lea.  It's a West Texas painting, a painting of a mountain scene.  And he said this about it -- he said," Sarah and I live on the east side of the mountain.  It's the sunrise side, not the sunset side.  It's the side to see the day that is coming, not to see the day that is gone."  I love the optimism in that painting because that's how I feel about America.
-G. W. Bush

"The patriotic music in political ads is so cornball."
by Erin Dann October 17, 2004
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3
some one who is really corny. Or a dude who tries to spit game but his game is weak as hell.
corn ball, ur not even funny.
by Tee4125 May 14, 2006
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4
a wack person, someone who thinks their cool, freshmen, dork, etc.
That kid thinks hes cool b/c he is late to class, what a cornball
by Lady K. November 06, 2004
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Comes from the word corn(y), a cornball is a corny person.
Person 1: Why is 6 afraid of 7?
Person 2: I don't know?
Person 1: Because 7, 8 (ate), 9
Person 2: Your suck a cornball
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a person who is not popular, looks and dresses like a dork, has book smart and no street smarts, and aslo does not keep it gangsta.
that kid with the big ass book bag and the glass is a fucking cornball
by kareem Roberts September 28, 2005
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Its that dumbass motherfucker that says stupid ass shit and acts like a moron... STOP DOIN THAT! U AINT GOT NO FRIENDS GO HOME!
Fuck that nigga hes a cornball he still thinks pac is alive. THAT NIGGA IS DEAD. PUFF SHOT HIM. THATS REAL.
by PSXy April 13, 2005
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