look up any word, like donkey punch:
 
1.
part in the toilet that lets in the water. also known as a fill valve.
my toilet keeps running. i need to fix the ballcock.
by plumber rick December 29, 2004
 
2.
The condition where by ones testicles retract upwards creating a singular solid formation with the penis. Usually due to a hefty kick aimed at the nether-region of a male, often induced by an inappropriate comment or touch
That bitch gave me a right ballcock with that kick I only felt her tit
by Dsto February 18, 2005
 
3.
(noun) A strange and rare condition where the affected has one large sac and testicle in place of a penis. Always coupled with Penis-Nuts.
See Penis-Nuts.
a: I saw Martin showering in the locker room today. that ball-cock really freaks me out.
b: I know, it's just not natural.
a: Makes you wonder, when he gets a boner, is it in the penis-nuts or the ball-cock?
b: Truly one of life's mysteries.
by kevcoch January 28, 2008
 
4.
To get screwed over, tricked, or cheated out of something.
That guy totally stole your girlfriend, dude you just got ballcocked.
by JP33A February 01, 2009
 
5.
Noun

Referring to a mans genitalia. Can refer to a man or a woman.


Prounounced with an "ax"
"The he got himself kicked right in the frikkin ballcocks!"

"Your mutha's ballcocks is so big, she looks like she's sittin on a bean bag chair!"
by DIRTYROTTENSTEVE May 07, 2005