1. An awesome remake of the original Half-Life 1.
2. The facility in which Half-Life 1 takes place in.
1. Dude, you should play Black Mesa, it's new and improved from Half-Life 1!
2. Gordon Freeman works at Black Mesa.
by Sir Terry October 4, 2013
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The Black Mesa Button is what Mr. Sentual uses to blend up a G-Man from Half-Life 2 (a parody on youtube about the ever popular Will it Blend series)

Also to be used in situations where something so bad is going to happen and you know it is but you don't give a flying fuck

ex. Gordon Freeman going into the teleporter and it doesn't work (big surprise there)
I think i'll use The Black Mesa Button

They want me to go to Mars in a rinky-dink space-ship and i probably won't come back but i'll just use The Black Mesa Button
by The Oregon Regent May 28, 2009
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When you go to the Nevada desert and masturbate using pliers. Commonly confused with the iron grip.
Some guy: Dude, I gave myself the black mesa source this weekend!

other guy: thats gross!
by The Iron Grip September 10, 2006
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A badass research facility located in New Mexico. After a cataclysmic disaster in Sector C, Gordon Freeman is left to fight off retarded zombie alien things and other creatures. The Hazardous Environment Combat Unit (HECU) is sent in to kill anything and everything remaining, while the Black Ops are sent in to arm a nuclear device. This event leads to the Seven Hour War, which destroys most of the world's population, and leads to the events in Half-Life 2.
The Black Mesa Research Facility is boring. Fuck I guess I'll go work for Aperture Science.
by The Wing Man December 25, 2018
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A strand of bubbles projected from the mouth, used by Benrey (Or Benry) in the Half Life But The AI Is Self Aware series created by the wayneradiotv YouTube channel.
Gordon: "What- what are you doing to him?"
Benrey: "It's the- theee- Black Mesa Sweet Voice."
by LSPD_ACC_1A12 November 17, 2020
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