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underspeed 

To drive over the speed limit, but still more slowly than everyone else on the road.
Underspeed. Conjugate like any other verb. Jeff undersped the whole time we were in Israel, going 80 kph when the posted limit was 60 kph. Krishnan and I mocked him severely when even a bus passed us at about 100 kph.
underspeed by Javelin December 14, 2008

Underweed 

When you and your friends are passing around a bong, and Y'all smoke the top layer of the weed. The Underweed is all the smokable weed under the burnt top layer in the bowl.
Don't forget to smoke the underweed at the bottom of the bowl!
Underweed by Brazybinch September 20, 2017

underagedophile 

i’m 15 but i like 7 year old kids
dude1: oh what’s that kid over there doing with that 7 year old?
dude2: oh he’s an underagedophile
underagedophile by real real person January 21, 2019

Underperforming 

Batman used to be a beast in year 7, but now that kid MAD underperforms.
"Why was Batman's presentation so bad?"

"'Coz she's underperforming."
Underperforming by ZaneyP00 April 5, 2022

underperior

The state of not being superior, or inferior.
I can do back flips, you cannot, therefore you are underperior
underperior by G.A.N.C. May 15, 2009

underpeel 

more fun than snorting 100 lines of crack
random val player: wtf is an underpeel??
W underpeel inhouser: the greatest community tournament of all time
underpeel by hoi3407 May 19, 2024
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

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
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