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circular reasoning 

Circular reasoning is providing evidence for the validity of an assertion, which assumes the validity of the assertion.

General forms include "A is true because A is true" or "A is true because B is true, and B is true because A is true".

Often used as a mechanism to prevent an assertion from being challenged or questioned, or to "win" a debate by sending it round and round in circles.
Examples of circular reasoning:

"I'm right because I'm right."

"There isn't a problem with the rule, because if everyone obeyed it there wouldn't be a problem."

"Piracy is wrong because it's against the law, and it's against the law because it's wrong."

"X is stupid because he's an idiot."
circular reasoning by fwe22 May 25, 2006

SAT Reasoning Test

The most complex, confusing, and most important high school test ever made. The company that makes it, CollegeBoard, makes it very tricky, and it is ABSOLUTELY the most important test in high school. Despite it's name, most of it is NOT reasoning, most of the test requires prior knowledge and skills.
WTH? CollegeBoard is giving me a test that doesn't even test beyond anything I learn in college. This test is rigged. The only people who get high scores on the test study for it, defeating it's purpose. So Why am I waking up early on a Saturday to take this again? The SAT reasoning test should be banned.
SAT Reasoning Test by BiggaNXT September 26, 2008

readonding 

Both reading and responding to a blog post. Combines the words reading, and responding.
Jack is a big fan of Jill's blog, that's why he's always readonding.
readonding by Hitter1015 March 17, 2011

Fecal Reasoning 

fecal reasoning- can be used like Fecal Justification, meaning the justification one utilizes in order to justify their defecation in a socially unacceptable manner/location
"The only reason I shit in the bucket is cuz were on the boat."

Kristen, spare me your fecal reasoning please
Fecal Reasoning by Tony. 305. October 15, 2007

Horizontal reasoning 

Logic applied uniquely when in the horizontal position.
"My horizontal reasoning says I can press Snooze one more time because I don't REALLY need a shower before my job interview."
or
"My horizontal reasong says it must be a good idea to have sex with them because LOOK! they're lying down beside me."
Horizontal reasoning by FailedLogic October 19, 2011

Seductive Reasoning 

Trying to get someone to do something

they do not want to do,

by seducing him/her.
"How did you get Jeff to come to the opera tonight?" said Kelly.
"Oh, I just used seductive reasoning." replied Jessica.
Seductive Reasoning by Jessicock September 6, 2009
More from Urban Dictionary

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

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
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