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Butte, Montana 

A vigilante town that used to have 1/2 million or a million residents due to the gold rush. It's known as "Fight Town USA". Evel Knievel, the original motorcycle stuntsman, lived there. The population is now about 33,000. It's often referred to as "Butt, Montana".
Butte, Montana sure is a unique place. It has the world's largest copper mine which is no longer in use. Residents are very friendly & strangers strike up conversations. The old open~pit copper mine is referred to as "The Pit" & is now full of water. It's Huge! The town of Walkersville, north of Butte, actually has people that live in Real tarpaper shacks! Most everyone there is poor & rent is cheap.
Butte, Montana by Starchylde May 25, 2016
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Montana Butt Floss 

A pair of tidy whities, stretched up and over the shoulders, arms coming out where the legs usually go.
Dumbass, wtf with the montana butt floss?!? Are you trying to figure out the ultimate wedgie? Or did you just have a bongload of salvia?
Montana Butt Floss by ratstalker March 29, 2013

montana front butt 

The fat that hangs out and forms a giant camel toe starting at the belly button and hanging as low as it can go. Also known as a FUPA (fat, upper, pussy area). Basically this is an extra ass located on the front side of rather large woman.
DAMN!! That bitch has got some Montana front butt that you could fall into and die.
More from Urban Dictionary

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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