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molar concentration 

Something you learn in chemistry which my cousin calls hell
I would rather eat Popeyes biscuit than learn molar concentration

Concentration douche face

The equivalence to resting bitch face, only this is the face made whenever someone is reading or working.
"Yo man you look really pissed. Is everything okay?"
"Oh yeah. I just have concentration douche face."

concentration tongue 

Much like drummer tongue, the act of unconsciously sticking the tongue part way out of the mouth while performing any task requiring concentration.
Billy must find colouring difficult: his concentration tongue is sticking out.
concentration tongue by Chibi Jeeb December 27, 2010

puerto rican concentration camp

When a Puerto Rican man ejaculates such an exorbitant amount of semen into an object, leading to the murder of millions of would-be Puerto Rican children in one place.
This dude Hernan has dumped so many loads in his mattress it's like a Puerto Rican concentration camp.

Concentration Cramp 

An alternative name for a headache.

Discomfort experienced when an individual has been focusing on a task for too long and needs a break.
"All this cramming for our European history class will be worth it when we get an A"

"I sure hope so, memorizing all the dates is giving me a serious concentration cramp"

concentration 

The act or process of concentrating, especially the fixing of close, undivided attention.
If you have great powers of concentration , that means you're able to focus all your attention on the matter at hand.
concentration by Mariendra March 11, 2014
More from Urban Dictionary

pajama casual 

Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.
pajama casual by jrod-knows March 31, 2020
Word of the Day on October 14, 2026

funflation 

The recent boom in consumer spending on entertainment and experiences with a high demand running up the cost of enjoying of those experiences.
I’m trying to go to this Taylor Swift concert but the funflation has made it so impossible for me to afford tickets.
funflation by Dfree523 November 17, 2023
Word of the Day on October 13, 2026
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
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