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Viper's Bugloss 

Viper’s Bugloss is unusual as it is the name for two entirely different things:
1 A common European plant "Echium Vulgare" also known as Blueweed, which has rough, hairy leaves and the flowers start off pink but turn blue as they mature;
2 A European moth "Hadena Irregularis" which flies from July to August, believed extinct in the UK due to loss of habitat;
So despite sounding a bit sinister, it’s just the name of a couple of nature’s minor oddities.
"Oh look, Viper's Bugloss!"
"Which? The plant or the moth?"
Viper's Bugloss by AKACroatalin April 16, 2015
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Viper's Kiss 

When you take a shot of alcohol into your mouth and give somebody a kiss, sharing it.
Man, David's really feeling it today. He's had 8 shots and gave a chick a viper's kiss.
Viper's Kiss by goldteeth July 13, 2020

Viper's Nest 

a gang\s/criminal organization's headquarters or hideout
the Viper's Nest for the Italian Mafia in Montreal Canada is the Costanza social club in the St Leonard neighborhood of the city
Viper's Nest by Uncle Dimma December 20, 2016

Viper's Nest 

(from the title of Episode 11, season 1 of the game Criminal Case onFacebook): a gang's headquarters/hideout.
The Montreal Mafia's Viper's Nest is The Costansa Social club, in St Leonard, the Italian neighborhood of Montreal, Canada (called Santa Leonardi di Montreale in Italian by the Italian community)
Viper's Nest by Uncle Dimma December 19, 2016

Viper's Nest 

the headquarters/hideout of the local gang
the Viper's Nest for the Italian mob in Montreal Canada is the Costanza social club in the St Leonard neighborhood
Viper's Nest by Uncle Dimma December 19, 2016

Viper's Nest 

a gang\s/criminal organization's headquarters or hideout
the Viper's Nest for the Italian Mafia in Montreal Canada is the Costanza social club in the St Leonard neighborhood of the city
Viper's Nest by Uncle Dimma December 20, 2016

Viper's kiss 

Similar to Poseidon's kiss except that you pissed in the water beforehand, so now the piss-infused water splashes up and touches your arse
"spent 20 minutes on the toilet yesterday and i got a Viper's kiss
Viper's kiss by Al sha3er January 8, 2025
More from Urban Dictionary
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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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