Big Montana 

1. A roast beef sandwich at Arby's.
2. A vagina that resembles a roast beef sandwich at Arby's. (In more than just looks...)

"Wow, that bitch sure does have a Big Montana between her legs."

Big Montana by algorhythm March 13, 2004

Big Montana 

Big Montana is a derogatory term in regards to when a girl who is a whore has so much vaginal penetration and wear n' tear, that she has vaginal folds that make her box look like an Arby's Big Montana sandwich.

The abbreviation "BM" means the same thing, but is normally used in order to get some strange at the bar or get a drunk chick to show you her vagina.

Example 1: "Fellas, that whore I hooked up with last night looked like she could have been a model for Arby's. All she had to do is spread her legs and show you her Big Montana and boom, she would have been the pinup for a #4 on the Arby's menu board."

Example 2: "Show me your fucking "BM" you cum drenched whore!"

Big Montana by Z GIB January 26, 2010

big montana 

when a females vagina has large, meaty flaps. usually in a roast beef kind of color. see "beef curtains", "t bone flaps." simular to a second rate fast food chain's large roast beef sandwhich.

"yo, i was with this girl last night.. she had a double serving of the big montana"

big montana by s rudiman September 21, 2005

big montana 

1. The largest of the Arby's Food chain Sandwiches.
2. A vagina that is loose and has been beat up like Grace Jones; lips are brown to brownish purple and resemble premium cuts of roast beef from a locally owned deli; sometime accompanied by Horsey Sauce.

That broad had a big montana, but I still ate it all.

big montana by The Diggler May 23, 2006

Big Montana 

A sloppy vagina, with meat curtains that run for miles. It hangs like sleeve of wizard and is so beat up that it looks like Roast Beef.

Her Vagina was nasty, that thing was a Big Montana. I'm tellin' you her Vagina was so loose, I could drive my truck through there.

Big Montana by chad richardson May 29, 2008

big montana 

When someone is sleeping you spread your butt cheeks and stick their nose in your asshole and fart, then slap their face with your cheeks

i gave andrew mitchell a big montana last night

big montana by Michael Wahl May 13, 2005

Big Montana 

The opposite of a sausage fest or testical festival. A party consisting of 90% or more females. A woman's vagina looks like a roast beef sandwich, hence a large gathering of vagina = the largest Arby's roast beef sandwich the BIG MONTANA.

Dude, you have got to get over to this party its a fucking big montana right now!

Big Montana by Manly McMan May 18, 2006