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1.
A nickname for the male penis, as opposed to the female penis.


Occasionally sings with the black eyed peas.
Step right up and see the one eyed monster.- From "The spy who shagged me"
by Gumba Gumba March 13, 2004
 
2.
1) A penis
2) A 4-cup formation in beirut in which one cup sits alone in front and the other 3 are lined up along the back edge of the table. A very difficult formation.
When the other team was shooting at the one-eyed monster in the beirut game, I whipped out my one-eyed monster and it made them airball both of their shots.
by Nick D February 04, 2004
 
4.
in the 1950's one-eyed monster was a very popular nick name given to the bulging televisions of the time. It is also a slang name for a camera.
Are you watching that One-Eyed Monster again Marge?
by Patrick London July 18, 2006
 
5.
A regular, large male penis, but always aroused and horny.
Me: Hey girl you want to see my One Eyed Monster?
Girlfriend: Again? Sure, but is it gonna be up and at it again?
Me: You know it!
Girlfriend: Awwwwwwwww yea! Let's go!
Me: Where?
Girlfriend: Everywhere!
by B4st4rd1yxxxxxx December 16, 2011
 
6.
When a person pulls down his/her pants and moons one or more people in a fashion that requires the person to use their hands to spred their buttcheeks apart and show their furry, brown asshole. This can be converted into two-eyed monsters, three-eyed, or as many eyes as you can find.
I gave a one-eyed monster to rout 206!
by Jörg December 11, 2006
 
7.
when you moon someone with ur buttcheeks stretched appart so that your victim stares right into the hole or "eye". if two people do it its a two eyed monster, if three, its a 3 eyed monster, so on...

also it could mean a penis
he gave me a one eyed monster yesterday, lets give him a 3-eyed monster tonight to get him back
by Flump August 20, 2006