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bad bottom day 

A day when it's just not working downstairs. Very farty and greasy.
I shouldn't have eaten that lentil burrito last night because I'm now having a bad bottom day.
bad bottom day by ratbagitinerant October 3, 2008

Whiskey bottle bad ass 

Usually meaning, one who drinks whiskey and instantly becomes a bad ass, one who will kick ass and forget names! They Usually use terms like "you're no match for me", or "I'll kill you" and then once the whiskey effect wears off they use the terms like " I'm sorry, I was drunk" or " I'm never drinking that again"!
Whiskey bottle bad ass......Hey I just got a call from richard, he's being a "Whisky bottle bad ass" again!
Is the strongest person ever, very helpful at times, is great at knowing the alphabet and can teach others it. Also is a baddie and slays it.
Friend: "OMG theyre such a Badbot!!"
Friend 2: "IKR!!!"
Badbot by kindamid June 17, 2022

Badbotty 

nerdboy slang adjective, a variant of badass that mummy won't get cross about
Yo badbotty motherflipper , finish your homework so we can play world of warcraft for half an hour before bedtime.
Badbotty by chumbukkit December 12, 2010
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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