A hoe who has had sex too much and their vagina is loose.
"Dude! Jess needs to stop flirting with other guys when she has her own boyfriend!"

"I know! She is SUCH a loose moose"
by wtf xAmanda April 20, 2008
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When you are doing a 69, someone farts and has minor leakage.
They were doing a 69, he farted and some diarhea got on her face.
by Vanessa February 28, 2005
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A term used for a promiscuous, overweight woman.
Damn, sounds like a loose moose just walked into the Sizzler.
by sonic8or December 21, 2013
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So I was walking down the street yesterday when I loose moosed
by Cleenich December 21, 2016
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When a man's asshole is so blown out from anal sex, that his sphinctor stops to work and he diahreas every time he shits.
Adam-Dude after I got rammed by that donkey boner I have a loose moose caboose!
Nolan-aww man mines been ripped up for years, do you have any diapers yet?
by Adam Shuford January 14, 2008
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The act of revealing you're genitals and shaft to perform in any sexual activity.
Boyfriend: "hey babe I'm gonna go.
Girlfriend: "why?"
Boyfriend: "I'm gonna go let loose the moose."
OR
"As the young lonely man was sitting in his basement he thought to himself, "now with mom and dad asleep I can let loose the moose."
by RESTERONER October 14, 2009
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