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Sigalistic Infoma 

Sigalistic Infoma is a sexually transmitted disease and is found on male/female genitalia. It grows mushrooms on your mushroom top of your a male. For females it will grow mold on your vaginal clitoris.
Woman: "Ew what's that?!"
Man: "Fuck it looks like you have me sigalistic Infoma you cunt!"
Sigalistic Infoma by farts2010 July 25, 2016

Sigmantics

The art of being a sigma male. Concerning the way of the sigma male and their actions.
Beta: Hey Anas, how’d you get that girls number despite ignoring her?

Sigma: Sigmantics.
Sigmantics by The Viber December 1, 2022

sigmastic 

Adjective, used to elaborate an act/ characteristic attributed to a Sigma male.
Example: "he shut them down with his sigmastic sarcasm"
sigmastic by DJLordy December 29, 2021

Sermistics Brain Disengrative Syndrome 

Sermistics Brain Disengrative Syndrome (SBDS) is a disease that was removed from the DSM. A person with this disease will have extreme heat in the brain and within 2 weeks will develop blurry vision, deafness, blindness, and Intellectual Disability. Other common things a person may experience are, seizures, dizziness, vomiting, stroke. They may also have delusions, night terrors, severe insomnia, and Fish Oder Syndrome.

A person with this disease will die within 8 months.
My brother has the disease, Sermistics Brain Disengrative Syndrome.

Sigmaticle 

other worldy, out there, spacey, trippy
That was quite the sigmaticle performance.
Sigmaticle by brodudeman November 9, 2010

Sigmatic 

A sigmatic is the type of senile old man who plays FGC games and gets their Twitter @ stolen by dudes named Tom Robinson
Tom Robinson: “Haha beat cha on the name grab. We know who the REAL Sigmatic is here pussy boi. Cry me a river.”
Sigmatic by Obama_658 March 2, 2021
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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