Chillin' with a flat spliff in the dark alleys of Ottawa. The word is derived by the distinct Northern Canadian Moose's tendancies to hide in dark places, example, a canopy of thick, evergreen Canadian Pine trees.
"Maybe later I'll go moosin' with the lads after work."
by Harry P. March 10, 2007
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When someone has done yayo/cocaine and is high out their minds then Bruce the Moose is officially on the loose and they're moosin. They're amped, pumped up, moosin hardcore- wicked happy and talking fast, talking much, moving much, bouncing much, jumpy much, dancing much, and having a great effing time actin a fool.
"Cocaine is a hell of a drug... a hell of a drug that gets you moosin kids."
by CDee June 22, 2012
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Hanging out or chilling; relaxing, usually with friends, often involves a joint or two.

Indigenous to Santa Cruz, California.
Hey what's you do this weekend?
i was just moosin it with some people at the beach.
by MoxyAmita June 29, 2009
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One person wears an array of dildos on their head and chargers full steam ahead into the others orifices.
“Hey Britt, wanna try moosin’ tonight?”

“As Michael affixed the dildo antlers on his head, and slathered each tip with astroglide, he knew that he and Zachary were going to have a wild night of moosin’.”

“Keep on moosin’!”
—(Pro moosin’ gif)
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1. Out here on the plains buffalo are still called bison, so when they cross with moose they are called Moosin which is not unlike the muffalo found in Western Minnesota.

2. Any non-stereotypical cross between animals or events.
Don't shoot the moosin; it is an endangered species.

They have been moosin around since high school.
by Cliff Clavin - Cheers March 27, 2008
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When sex drive and testosterone levels are so high you feel like you can take the world on in a bare knuckle fist fight.

Or

The over powering urge to destroy some sweet poon.
Bro I was Bull Moosin' so bad today at work! Lesley looked so fine I just wanted to dick her down longdick style.
by Brofessor Gainz December 4, 2015
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"Moosin' around" is a term for when people are doing something that doesn't seem harmful but very easily and very quickly can become so.
"Look at them, Moosin' around, they're gonna get hurt."
by NYEH-HO November 11, 2022
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