A way to be all encompassing of alpine downhill sports. As it is uninclusive to say hey let's go skiing when others snowboard.
Person 1: hey let's go skiing
Person 2: excuse me, I snowboard
1: oh I'm sorry bud, let's go mountain downing
Person 2: excuse me, I snowboard
1: oh I'm sorry bud, let's go mountain downing
by adjectivesnoonoo January 28, 2018

A former hangout in Northeastern PA across from Camp Cockblock where good times and all around shinannigans took place.
by Mr.Mulch January 9, 2010

Someone who is in the middle of a situation who is in a position to know exactly what is or was going on.
Someone who is on the volcano would have a better idea if an eruption is about to happen versus someone who is away from the mountain.
Someone who is on the volcano would have a better idea if an eruption is about to happen versus someone who is away from the mountain.
I know exactly what happened yesterday. You weren't there. I was. I was the volcanologist on the mountain.
by Bigdrawers November 15, 2017

by Atha March 18, 2010

(n.) Used primarily with waking up. Generally, it is a girl with a unshaven pussy or beaver that has let it grow a little too much and thusly become a small mountain of pubic hair. Should be used with the adjective of color describing the girl's hair.
Coleman: Hey Vince, I didn't see you last night, what happened I thought you were my ride from the party?
Vince: Ahh Coleman man, I'm really sorry i woke up this morning in Brown Bush Mountain.
Coleman: Sara or Rachel?
Vince: Sara, man!
Coleman: ...I Understand completely...On a side note though...NICEEEEEEEEE
Vince: I KNOW RIGHT?
(High Five)
Vince: Ahh Coleman man, I'm really sorry i woke up this morning in Brown Bush Mountain.
Coleman: Sara or Rachel?
Vince: Sara, man!
Coleman: ...I Understand completely...On a side note though...NICEEEEEEEEE
Vince: I KNOW RIGHT?
(High Five)
by VMcG May 31, 2011

Damn dawg, that 22 year old ginger boy is getting his dick wet hella deep in M.I.L.F. pussy; he must have Mountain Fever.
by Lehetinu September 26, 2021

(noun) another word for toilet paper. Primarily used in remote mountainous areas or while camping.
Origin: Oregon, USA
Origin: Oregon, USA
by emcii December 9, 2008
