Grunt Valve 

A vehicle that has been modified so that it produces a loud, rumbling, aggressive noise when the engine is revved. This modification is known as installing a ‘Grunt Valve’

Dave: Bruv, what was that car that just sped past us, sounded like a TVR or something..?

Joe: Nah mate, saxo.

Dave: Shit man, must have a fat grunt valve innit.

Dave: What you sayin Joe?

Joe Just chillin in the grunt valve innit.

Dave: Fair play, whats the grunt valve sayin?

Grunt Valve: GGRRRRRRR – WAAAAP WAAAAPP WAAAAAAAAAAAAP!

Dave: That’s some serious grunt valve right there Joe, he is on it.

Joe: Innit doe.

Grunt Valve by Badmaninnitdoe October 7, 2010

Sausage Valve 

The part of the male body used for a multitude of purposes; showing off to friends, Sexual intercourse, Urinating, etc. Also know by such terms as Penis or Dong.

Mark: My woman sure does want a baby.
Tom: You going to give her the fillup?
Mark: Yes sir, Ill open the Sausage valve and iced her cake.
Tom: Way to use your sausage valve buddy!

Sausage Valve by imthattechguy January 25, 2011

Douche Valve 

Wireless (Bluetooth) headset worn by loud obnoxious douchebags that think everyone around them wants to hear their conversation.

Bob's talking on his Douche Valve again!

Douche Valve by electrogeek March 7, 2012

Clatter Valve

Clatter valve is a north east slang for a women's private parts (the foof)

She got it right in the clatter valve last night.

Clatter Valve by Robbie Weir fan club September 8, 2014

Flapper Valve 

While having anal sex and your penis goes too deep and hits the "flapper valve" causing your partner to shit the shaft.

Sarah told me yesterday that her and Bill had anla sex and he hit her flapper valve.

Flapper Valve by bench knight May 6, 2015

penis valve

The act of jamming your penis into a faucet to stop the flow of the water

Jimmy broke the sink so he had to use a penis valve

penis valve by Waffles magoo September 4, 2016

Post Valve Depression 

A strange and sad feeling one gets whenever they remember or realize that Valve will never make a continuation of amazing games such as Half Life or Portal.

“Man.. thinking about how HL3 or P3 will never happen is just a whole deal.”
“Buddy. Thats Post Valve Depression.” *pat pat*

Post Valve Depression by Anakinnie April 19, 2022