ass-mountain 

An excessively large amount of something.

I have an ass-mountain of homework due tomorrow.

Dude, you're definitely pulling an all-nighter.

ass-mountain by Iamabstract November 1, 2010

brokeback mountain ass nigga 

This clever word was developed using the popular movie Brokeback Mountain, and its gay characteristics, as well as lingo from the hood to describe a friend that is acting gay or being a bitch.

John: Leave me alone!
Tyler: You a brokeback mountain as nigga!

Tyler: I'm not going out tonight, I want to stay home to watch Tope Chef and make pan broiled halibut.
Julie: You're being a complete brokeback mountain ass nigga!

brokeback mountain ass nigga by silverstreaks2004 December 19, 2009

Mountain-ass 

noun, the medical condition experienced by female ski resort season-workers wherein rapid and protracted intake of high-calorie, often fried foods (usually justified on the grounds of perceived increase in physical activity) causes expansion of a formerly attractive posterior beyond normal dimensions.

Dude1: Man, this season was too f**kin' ace, but I'm looking forward to rotating back to the world and seeing some girls without mountain-ass.
Dude2: Quite.

Mountain-ass by bombdog January 21, 2009

Rocky Mountain Ass Crack 

Someone's mom's ass that has a carpet on her ass and warts to go with it.

I wanted to do his mom sooo badly, but didn't realize that she had a rocky mountain ass crack.

Rocky Mountain Ass Crack by CutthroatMassacre July 3, 2007

Rocky mountain exploring up my ass

It means that your getting fucked by a bbc and it cums

Jon : Oh my god I just went rocky moutain explored up Jenny ass and I loved it!!

Mark : Damn you're a lucky dude.

Rocky mountain exploring up my ass

Rocky mountain exploring up my ass by Saw-illydfss September 28, 2018

Dual moutain ass 

Coined in Whistler /Blackcomb for local women who have developed athletic but large booty due to vigorous hill climbing .

"Hey Kevin did you see at Shania, she has been in Switzerland so long she got dual moutain ass.

Dual moutain ass by dubeswiggins April 21, 2018

assmountain 

an email attatchment

"I sent you the lab as an assmountain"

"Hey, Bob, did you get that assmountain of the TPS reports?"

assmountain by Nbaum April 14, 2007