Foul Ball 

When a man inserts one of his testicles into a girls butthole while having intercourse.

I totally have my girlfriend a foul ball last night, and she loved it!

Foul Ball by Kneebuster1 February 1, 2015

foul ball 

When a girl goes to grab a guy's dick, but instead grabs his balls.

"I think Scott's mad at me...I foul balled him pretty hard last night and hurt hium pretty bad."

foul ball by Mark Twain May 13, 2005

foul ball 

A dirty prank where someone poops in the water tank of a commode, leaving a rank smell and bits of poop showing up in the water everytime you flush.

WTF?! I just took a shit, and the toilet is shitting on my shit. Some little shit musta given me a foul ball!

foul ball by R. Kemp August 23, 2006

foul out

To be the last person romantically involved with someone before they "come out of the closet". As "striking out" is to be shut down, and happens quite often; fouling out, or turning someone homosexual is far less frequent, just as in baseball.

"Did you hear that Stephen is gay?"
"That means Melissa fouled out twice!"

foul out by Matthias September 19, 2004

foul ball 

When you go forward a base but decide that you don't want to do that anymore, so you go back a base.

"So I went to third base last night, but I think I'm just gonna call it a foul ball."

foul ball by fuck_you5times December 18, 2008

Foul shots 

A drinking game that is most popular during the ACC basketball tournament or March madness where the players draw two players names out of a hat and throughout the course of a game are to take a shot of captain barbarossa spiced rum for each foul committed by each player. Generally considered a reputable drink, barbarossa is the accepted, low-dollar choice for this activity.
*If a player draws two forwards or centers or a combination of both, coke may be an acceptable chaser, if any.

"Hey man are you going to come watch the game against Kansas? We got a handle of barbarossa so we'll be playing foul shots."

Foul shots by I. P. Friely February 23, 2009

foul ball 

A shemale or transsexual, discovered when getting to sexual second or third base, and more rarely, when attempting a straight home run.

Origin: Plays off of a baseball hit into foul territory, and the sexual "bases"

Person 1: "Did you get to third base last night?"
Person 2: "Nah mang, she turned out to be a foul ball!"
Person 1: "That's pretty foul!"

foul ball by Shiggity Shiggity Shiggity November 15, 2011