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1.
The manliest type of Man.
Did you see that guy take a bullet and just keep on going like it was nothing? He's a mountain man.
by Mountainous July 25, 2005
 
2.
A person who looks like they just slept on the mountains, this person usually has scruffy hair, and smells bad. These people can summon animals by laughing with a high pitched scream. Also this Mountain Man tends to growl. (Also known as Mx2)
(Brooke just woke up)

Morgan- look at Mountain Man over there !
by davidlover18 June 20, 2009
 
3.
to let go of ones physical appearance (large beard, dirty hair, horrible hygene) Usually during a state of depression, or extreme laziness.

generally applies to males.
Joe: "man,Dave's been real upset lately."

Jack: "yeah i think hes gonna pull a mountain man"
by Slagatron August 18, 2007
 
4.
An individual who is cute yet charming while knows how to be the life of the party at any dull moment. Some have been known to mistake the most interesting man in the world with the mountainman. If he punches you in the face you will have to fight off the strong urge to thank the mountainman and then move on with your day. Girls want to be with him and guys want to be him. if you get the rare chance to meet him i suggest you thank him for everything he has done he is the mountainman.
Girl - Are you jesus?

Mountainman - No sweetie i am the mountainman
by I am the mountainman September 22, 2010
 
5.
A guy who like to bring girls to the tops of small mountains in hopes the girl will be blown away by the breath taking view and hook up with you
Hey babe im the mountain man wanna go to the mountain and drink some beers so i can have sex with you?
by Jacked J September 01, 2007