The best game ever. You hit someone on the arm, while screaming "MOOOOOSE" really loud. For best results, continue screaming until they either:
a)Get scared and run away
b)Smack you
c)Stare mildly at you

Either way, it's most definitely the best game ever. If you've never played it, you suck. You suck anyway. You disguist me. GET OUT OF MY SIGHT!
*smack* MOOSE
What the fuck?
*smack* MOOSE
*Run away*
by MooseOfDoom May 11, 2005
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The man penetrates his lady friend in the 'doggy' position. At the point of climax, he puts his hands to the side of his head, palms open and pointing forwards, with the thumbs pressed just above the ears, representing antlers. Moose-esque sound effects/shaking of the head are optional.
With all the noise and shaking, Felicity thought that Roger was having a heart attack. It was only after cleaning up that he revealed that he had been indulging in a spot of moosing. She resolved to position herself in front of a mirror next time he tried to slip her one from behind.
by Will Bowen November 19, 2004
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(n) An affectionate term to describe someone socially inept (or at least awkward). Moose tend to have specialized knowledge on some geeky topic, such as star wars, dnd, star trek, lord of the rings, etc. Drama and art majors tend to be moose. Acts of moosery are possible from anyone whether they are a moose generally or not, as long as they miss some conversational subtlety and fall on their face in an attempt to make a joke. Moose tend to have trouble getting dates, because moosery is not as celebrated in this society as it ought to be.
(origin) From the movie "Stay" with Ewan McGregor.

(adj) moose. can also be used as an adjective to describe someone who is a moose.
Some famous moose are:

Ewan McGregor,
Threepio,
Nicolas Cage,
Benny and Joon,
Characters from I <3 Huckabees,
Johnny Depp,
Brian Gernand,
Telford Work,
by sock baby December 12, 2005
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one who has a huge dick
Kyle and Chris both have a moose.
by Squeaks from CBA January 3, 2011
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Moose is a generally cool nickname for everyone. It promotes all things stupid and unexplained, "Moose" love to eat and sleep and be generally funny at a cost to thier street cred and limbs. A kind endearing term.

I should know... it is my nickname... thank you very much
To say hi to a moose: "Howdy Moose!"
To ask for something: "Mooshy... please can I..."
To annoy: Call by their real name... it really annoys them.
by moose_emma@hotmail.com November 5, 2006
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Have your bed facing a door opening while a girl is giving you a blow job. Then when your buddy opens the door with out her knowing to take a picture you give her moose antlers right before the picture is taken.
The guys laughed when they saw Jack's picture of Frank giving some girl the moose.
by DriveBySpanking September 5, 2006
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Originated by GI's in Japan. Moose is GI slang for the Japanese word Musumei which means girl. Some Japanese girls use it as slang for theri vagina.

Properly spelled Musu

My wife is Japanese this usage goes back 60 years
GI to another "You should see my little moose".
by Otiose January 30, 2008
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