A cancerous testicle.
Richard thought he had a hernia but it actually turned out to be a foul ball. They popped that sucker out and dropped a new superball in his sack.
by kajoe December 06, 2006

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Finding out said person is a post operative transexual after oral sex
I rounded third base only to cry foul ball
by Hawt Stuff March 03, 2009

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A sexual act where the guy asks a girl to teabag him while knowing that he hasn't washed his scrotal sack for an extended period of time (at least 5 days). The woman begins to teabag the man and gets a mouthful of ballsweat and whatever else may have grown or collected on the scrotum.
Gerald hadn't washed for weeks. At a party, Jenna took him to a back room with the intentions of a teabag. She ended up with a foul ball, and quite a taste in her mouth.
by Jonathan B. March 29, 2007

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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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."
by fuck_you5times November 25, 2008

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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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."
by Mark Twain February 25, 2005

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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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!
by R. Kemp August 23, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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A sexual situation where the male is going to town own a girl. Just before blowing his load he sticks his fingers in her ass and smears the contents on his balls. He then shoots his load onto her face to make a nice line and then teabags her. His balls will either go left or right and thus the foul ball.
by The V.I.P. January 19, 2005

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt