"Oh dude, I can't believe you just curveballed my teacher!"
"Nice curveball."
"You just curveballed me."
"Curveball!"
"Nice curveball."
"You just curveballed me."
"Curveball!"
by Bartlebus Kettleby May 23, 2009

Having a bowel movement. (Number 2 is the designation for having to take a bowel movement, and it is generally the catcher's sign for a curveball to be thrown.
by tbrazen June 17, 2009

An extremely hot girl, SO hot that she in fact buckles your knees, much like a good curveball will do when it looks like its coming at your head and then the bottom falls out of it.
by Wonderboy 2k January 21, 2006

by Dr Turbotnik September 02, 2005

A Texas Curveball is an uncircumcised dick with foreskin all the way up to the urethra, with a large round head and a thin crooked shaft. So-named due to the penile deformity resembling the curveball arm configuration of MLB pitcher Clayton Kershaw, a Texas native.
by Nickf2019 May 17, 2019

by Frank ruboneout November 18, 2013

by Slightly_Mad April 18, 2006
