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A small valve or faucet used to drain or reduce pressure, as from a boiler or radiator.
Before you remove that radiator, open the petcock and let it drain.
petcock by Reaper October 13, 2003
Related Words

pincockio 

a pincockio is when a guy gets a tattoo of pinochio around the base of his cock so that when he gets a hard -on it looks like pinochio's nose
when that bitch gave me head, she was looking my pincockio right in the eyes
pincockio by gene kelly 12 November 8, 2007

Pidcocked 

To have failed.
That politician Pidcocked
Pidcocked by Snugtal January 7, 2020

Pitcackle 

For ones anus to have a "blowout" whilst in a scrum during a game of rugby.
You can't fool me, that was a pitcackle.
Pitcackle by StolenAnchor September 5, 2009
A pincock is an offensive term for russian women.
You disgusting Pincock. Go back to working the corner.
Pincock by Faptastic Master September 25, 2018
To stroke the cock with a petting motion. This is typically done to make the cock stand alert.
That bitch was trying to get my attention so she pulled the ole petcock and I stood at attention immediately.
petcock by Estes June 28, 2011
More from Urban Dictionary
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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