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Blue Bagging 

Holding a blue Forest Service bag below your asshole and taking a shit, usually done in the far depths of the wilderness to protect the environment and other adventurers' well-being. These are most common in snowy mountain environments where buried poop would become exposed again within a few weeks.
(National Forest Ranger): Thanks for signing into the climbing register! In case you haven't heard, there's no toilet on the mountain this year. Did you pick up some of our waste disposal bags?

(Hiker): You mean the things you take a dump into? Yup...

(Forest Ranger): And you know about our ongoing campaign, right? -- Don't throw the bags into crevasses or pit toilets, carry them (filled with poo) all the way back and throw them in the trash.

(Hiker): Great... blue bagging it once again.
Blue Bagging by MountainClimber August 1, 2012

Blue bagging 

Blue bagging is the act of going to the off-licence and getting drunk at home or the park (dependent on age) instead of going to a bar. Often done near the end of the month just before payday when most people have no money. Named blue bagging as the majority of plastic bags from local off-licences are indeed blue.
Steve: hey pete you gonna come out with us tonight.
Pete: no sorry dude im blue bagging with alex tonight.
Blue bagging by Matt Barr December 26, 2007
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
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