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1.
Space Monkey is a game that teens play where a person either chokes his/herself or has someone else do it until they almost pass out. It can cause brain damage due to lack of oxygen to the brain.
Billy was playing "Space Monkey" to get a rush and ended up getting brain damage.
by CAP1 September 28, 2005
 
2.
Consider the first monkeys shot into space. Without pain, without sacrifice, we are nothing.
You look like a monkey ready to be shot into space
by The G November 28, 2003
 
3.
a game in which the main objective is to make the other person pass out, for fun.
to play this, the person who wishes to pass out breaths into a sweatshirt or something else for 20-30 seconds to make them slightly oxygen deprived. They then hold their breath while the other player pushes their stomach hard until the oxygen deprivation causes them to pass out.
Do not attempt this without someone willing to catch you as you fall to the ground due to fainting.
guy- hey lets play space monkeys
other guy-alright sounds cool
(45 seconds later)
guy- it didnt work(as he passes out falling toward a bed)
other guy- oh shit (luckily he was there to prevent guy from breaking neck)
by kburb November 15, 2006
 
4.
A song by Placebo, track 4 on the album "Meds."
Space monkey in the place to be...

We're sewn together
She's born to mesmer
Beside, astride her
I'd die inside her
It's far too sacred
Don't ever fake it
And don't
Don't
Don't let me down
Like you let me down before
by subxavier May 12, 2006
 
5.
as said by Tyler Durden. one willing or set out to sacrafice themself for the greater good.
Like a monkey being shot out to space.. a space monkey.
by fight club February 22, 2003
 
6.
A game played by boys and girls ages 10-20 who can't manage to get their hands on any weed. Choking yourself causes lack of oxygen to the brain and can cause oneself to lose consciousness or die. Kids think that it makes them feel high, while really it just destroy's their brain.
"John choked Billy to death while they were playing space monkey"
"Damn, someone should've given them some pot.
by Occult Aura December 28, 2009
 
7.
Spacemonkey is the nickname of Daniel Jackson, given by Jack O'Neill. Daniel hates said name, which makes Jack use it even more. Given to him after he is alive after all (he almost pulled a Daniel Jackson).
"Spacemonkey. Yeah!"
"Don't call me Spacemonkey, Jaaack"
by LabRatAbby December 02, 2007