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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.

Tea Concentrate 

The super-strong liquid left at the bottom of your mug after a teabag has been left in your now drunken tea. This usually occurs as a result of failure to completely drink the beverage or dispose of the teabag beforehand.
Trevor: Have you finished drinking that yet?

Bob: Pretty much, do you want this Tea Concentrate?

Trevor: Hell no.
Tea Concentrate by EdoubleLIOT January 15, 2011

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"
More from Urban Dictionary

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
Ratfucker by Ricky Ramjet November 2, 2017
Word of the Day on November 2, 2026

countrypolitan 

Term used to describe someone who is a mix of both rural (country) and urban (metropolitan) lifestyles/upbringings. He/she is typically equally comfortable in both settings and is able to seamlessly slip back and forth between the two, appreciating the characteristics of each.
That ol' gal of mine drives the 12 lane freeway during the week and a John Deere on the weekends. She likes opra and the Grand Ol' Opry. I love them countrypolitan women.
countrypolitan by MOChick November 7, 2006
Word of the Day on November 1, 2026

Witch Bath 

A bath consisting of a variety of slats, oils, soaps or any other added ingredients such as fruits, milks, herbs or any other spices for health or beautifying benifits.
She brought home alot of stuff and took it to the bathroom. She must be taking a witch bath.
Witch Bath by carnieboy30 October 26, 2020
Word of the Day on October 31, 2026

kinktober 

An excuse for people to write porn with different types of kinks throughout the month of October.

Smut Fanfiction
That chick doesn't write often but when she does, its for Kinktober.
kinktober by Kinkiest July 12, 2018
Word of the Day on October 30, 2026

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
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