valve 

A valve is the kind of booger that moves in and out like a flap or "valve" when you breathe. There is also the much more rare "double valve".

"Check out my sweat valve" he said, pushing one nostril shut to amplify the sound of the valve in the other.

valve by rob1116 March 10, 2008

Valve 

{NOUN} This is a term for a person who is considered to have 'loose' morals. A person who sleeps around or gets off with lots of people in pubs and clubs. Maybe even a person who dresses inappropriately.

Friend #1: Jeez Louise!! Did you see that absolute Valve?
Friend #2: Yeah! If that top was any lower we could've seen her belly button.

Valve by The Smiddler November 4, 2009

Valve 

A joke of a company

Josh: When will a good non VR game come out Valve?
GabeN: Yes

Valve by Certified Redditior April 27, 2021

Valve 

It means dick/penis/cock, or package. Because that's where you get release.

Now I'm going to go to Deborah and have her check my valve.

Valve by lone_wolf32 February 10, 2022

Valve can't count to three 

The fact that Valve (Game creators) can't count to three but can to 4,5,6 etc. popularized by the fact that the third Half-Life game wasn't Half-Life 3 but Half-Life 2:Episode 1

John:Hey! Can't wait till Portal 3 comes out!
Jack:Umm... Valve can't count to three, idiot.
John: Oh! Then let's wait for Portal 2: The Sequel.

Valve can't count to three by CarTroll September 28, 2011

[valve]niggerkiller 

A sniper bot in tf2 that has taken over casual, you can barely join a server without encountering him these days.
It used to crash servers too, although that was fixed a couple of days ago.

Person: *tries to votekick valveniggerkiller*
Gibus pyro: *votes no*

[valve]niggerkiller by RenderError April 10, 2020

Valve Time 

A Unit of time measurement similar to normal time, however very flexible - something that Valve says might take a week could take a day, or something that they say might take a month, will take a year. Generally fluid.

Team fortress 2 players got the bad end of Valve Time when the pyro update was first announced, and got the good end of it when they fixed the infinite health glitch in record time after it was found.

Valve Time by De Lumpdumper May 5, 2018