Top Definition
geting laid while on a mountain
man alst night i took this girl up on the hill and got some MOUNTAIN BEAVER
by tbone07 December 29, 2010
A mountain beaver is like a large rat, and lives along the western coast of the united states. It is generally brown has a stubby tail, beaver like teeth, and killer claws. Mountain beavers are nocturnal and are difficult to find, like yeti's.
Katrina: Dude what was that
Marina: It was the beast of the forest, a Mountain Beaver
Katrina: It looked fierce, I wouldn't want to go one one one with one of those!
by mtbeaverbeast February 26, 2010

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