look up any word, like cunt:
 
1.
A particularly difficult issue, obstacle, or problem. Named after the equally tricky baseball pitch.
The professor really threw me a curve ball with that last exam test.
by 1Spectre4U October 21, 2003
 
2.
having something catch you off guard.
ME: I need help studying for the test
HOT TEACHER: do you need me to teach you a lesson?
ME: I'm sorry, What?
HOT TEACHER: do you need me to teach you a lesson?
ME: Oh, You just threw me a curve ball.
by shotinthedark112 June 17, 2009
 
3.
A flash game online that is essentially an updated, 3D version of the classic 'Pong'. Many claim to reach high levels like 12 or 20, but they are lies, as the source code reveals the highest level as 10. Based on online research, I am the only one who has ever reached level 10. But I have only done so once, and it is impossible indeed.
1. I am the best Curveball player in the world! I got to Level 10!
2. Dude, I was playing Curveball the other day and level 9 was bringin' the heat tenfold!
by Ryan Fitz April 23, 2006
 
4.
A pitch which is doctored by the pitcher to make it have a bending motion as it comes to the plate.The pitch is thrown with a different grip than the fastball in that a pitcher wedges the ball in between his fingers and delivers the pitch as if he were slamming his fist down on a table. This creates topspin on the ball which makes air moving around it curve to the axis rotation of the pitch.

"The only reason why the batter is the underdog in this game." ~Warren Spahn, Winningest lefty of all time
"Barry Zito's curveball is unhittable!"
"That curve he snapped off was perfect! Nose to knees..."
by Amaury Warfield September 30, 2005
 
5.
A black person in New Jersey. On Police Reports in NJ, people are referred to by race codes, 01 for white, 02 for black and 05 for Hispanic. In baseball, when a catcher wants a pitcher to throw a curveball, he puts down 2 fingers, thus a black person is a "curveball".
1st cop: "Anything going on?"
2nd cop: "There was a robbery at a bodega this morning. Three guys with guns."
1st Cop: "Curveballs?"
2nd cop: "What else?"
by Canadiandeucecurveball November 27, 2010
 
6.
A person with a severe dick curve that often looks like a pitcher throwing a curveball
Curt has a freaking Curveball damn!
by T-stroke May 04, 2005
 
7.
The act of farting in your hand and then wafting it to another.
"Oh dude, I can't believe you just curveballed my teacher!"

"Nice curveball."

"You just curveballed me."

"Curveball!"
by Bartlebus Kettleby May 23, 2009