Cumcentration 

The skill required to keep yourself from prematurely ejaculating when having sex with a significant other.

Steve: So I was fucking my main bitch last night, and I was pretty nervous and scared that I'd blow my load.
Alan: What'd you do?
Steve: I just thought about rainbows and shit.
Alan: Whoa that must've taken tons of cumcentration.

Sophie: I have this jewish boyfriend, and he keeps prematurely ejaculating.
Oprah: Bitch you gotta send your man to a cumcentration camp.
Sohpie: Oprah, that's very socially insensitive, I dont make fun of you for being a queefopotamus, do I?

Cumcentration by Germ604 June 25, 2009

molar concentration 

Something you learn in chemistry which my cousin calls hell

I would rather eat Popeyes biscuit than learn molar concentration

molar concentration by Aughbygarrison May 16, 2022

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 douche face by Jumbawumba April 2, 2015

Cuntcentration Camp 

Often referred to as a large gathering or clique of individuals whose "cuntyness" has attracted them to each other, much like flies to a shit pile.

Look at that Cuntcentration Camp over there; I knew Molly would give into and join the rest of the cunts when she blew the quarterback behind the bleachers.

Cuntcentration Camp by Chris Fridge April 22, 2014

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.

puerto rican concentration camp by pp9k December 17, 2017

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 Cramp by ratherdashing April 1, 2017