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noun, pronounced "Spee-Oh"
acronym for Self Proclaimed Expert On Everything
The annoying know-it-all in everyone's social circle, or quasi-member thereof, who always insists on one-upping the person controlling a current conversation with useless factoids or name-dropping to make himself appear more knowledgable or superior to the audience in question. Considers himself (herself) the perfect candidate for "Jeopardy"
Did you hear how many times he interrupted her description of her trip to New York to correct her and brag about his trip to Boston. Dude, he is such a SPEOE
SPEOE by Chellabella January 4, 2009
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Speed Chamber 

A damp reinforced room typically located in a dark and dilapidated basement that houses and stores Mongolian child sex slaves (usually seven) for sacred rituals in Feridon's name.
"Trust me, a speed chamber can never be too reinforced. You don't want those little sex slaves to have any hope of escape."
Speed Chamber by Feridon Hamidi March 18, 2019
Related Words

at the speed of laughs 

This describes either comical behavior or buffonary by someone making foolish statements.
The opposing party's bill is coming to us at the speed of laughs!

Blue Speed

Blue Speed is blue amphetamine. Usually, it's blue Ethylamphetamine. It's made by the reductive amination of Phenyl-2-Propanone with ethylamine using a non-toxic Aluminum Galinstan amalgam. It's a stimulant used to study and give a boost of confidence and energy. It's also good for ADHD and ADD.
I tried 25mg blue speed and I was studying for hours. I was also kind of hyper and energetic and confident. ◉_◉
Blue Speed by CognitiveFuel November 3, 2022

Spicy Speedbag 

When you are having anal (doggy style) with a girl you secretly dip your nuts in medium-hot salsa and proceed to fuck. The now spicy testicles hit the vagina repeatedly and propel the salsa in and around the vagina.
Girl: You wouldn't believe Chris last night he gave me a spicy Speedbag. I douched twice and it still burned!
Spicy Speedbag by SeñorChub April 13, 2014

Speed Packer 

A speed packer is a packer who can say multiple jokes and words quickly in a short amount of time. Nonstop packing.
"I couldn't even get my joke in because he's a speed packer, I couldn't say my jokes as fast as he did!"
Speed Packer by thethizzkid December 13, 2020

Michigan speed limit 

The speed at which a cop won't pull you over in Michigan. Usually 5-10mph over the posted speed limit on main roads and 15-20mph over the posted speed limit on highways. If you don't maintain this speed you will have a line of cars behind you, each within three feet of the car in front of them. If you feel like driving under the posted speed limit and the weather conditions are anywhere near decent, then you better just pull over and let people pass you.
Mike: Hey dude, you're going way too fast, slow it down.
Nick: Naw it's alright, the Michigan speed limit on this road is 65.
Mike: Yeah I know, but you're doin' 90.
Nick: Oh. Yeah I should probably back off.
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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