A boulder brain is a Norfolk inbread male, who is over weight has poor hygiene, rarely washes towels sheets.... stresses over everything but not as much as his trouser button. Pants always down crack showing. Loverble, simple, germ ridden.
by Neilwill September 26, 2019
Get the boulder brainmug. A common slang term used to describe many of the prostitutes that walk along Boulder highway in Las Vegas, NV.
GUY 1: holy shit, why does that girl walking across the street look like a trainwreck?
GUY 2: Bro, that's a boulder highway Barbie......
GUY 2: Bro, that's a boulder highway Barbie......
by BHsi August 6, 2017
Get the Boulder Highway Barbiemug. 
A term used in sexual related jokes which are designed in a manner to insult women. Done while fucking a chick in a rocky area. As the man is about to Skeet, he reaches over his shoulder and picks up a boulder behind him. He then slams the rock down onto the woman as he nuts, killing her in the process.
We were out at Lake Travis over spring break and I met this dirty whore. I got her wasted and was fucking her out on the cliff over the lake. She kept bitching about me taking so long so I gave her the "over-the-shoulder-boulder." Yeah, she shut the fuck up.
by Gangsta Rich June 20, 2006
Get the Over-the-shoulder-bouldermug. 
On a hot day, when sweat has accumulated down your ass crack, you drop your pants slightly and have someone blow air straight down your cheeks causing an evaporative cooler effect resulting an immediate drop in body temperature.
Tom was getting close to having a heat stroke so he had Tammy hook him up with a Boulder Highway Swamp Cooler to cool him off.
by John Baggins June 18, 2022
Get the Boulder Highway Swamp Coolermug. a way to tell someone you aren't doing something they ask OR telling someone to go fuck off and get away from you, essentially another way of telling someone to go kick rocks.
timmy: yo johnny how bout you stop by kwikmart and get me a sixer of miller lite before you go to danielles?
johnny: uhh how bout you go climb some boulders.
Mom: hey son can you do your laundry and clean the dishes since i let you live here for free
Son: go climb boulders bitch
johnny: uhh how bout you go climb some boulders.
Mom: hey son can you do your laundry and clean the dishes since i let you live here for free
Son: go climb boulders bitch
by danny_boi November 20, 2007
Get the climb bouldersmug.