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instructions unclear 

Used whenever someone gives blatantly awful instructions and leaves the person trying to learn worse off than where he/she was originally.
"To set up the demodulator 9000, hook up the synthescope sync clock to the upper radial bearing of the elliptical upper casing ..."

"Instructions unclear: dick stuck in toaster."
instructions unclear by Dark Sneasel September 7, 2014

The Enclosed Instruction Book 

1. A video game guide booklet that comes packaged with the CD-i game "Hotel Mario".

2. A vary powerful item in the world of YouTube Poop, it has various abilities, and has enough power to even destroy God Luigi, the final form of Gay Luigi. It is believed to be controlled by Mario.
1. If you need instructions on howta get through duh hotels, check out The Enclosed Instruction Book.

2. Mah Boi, The Enclosed Instruction Book is what ALL true warriors STRIVE for!

Flight Instructor Special 

An alcohol purchase by Bill and Kev from the Circular K "Circle K" with a poor flight instructor's paycheck in mind. Usually consists of two Coor's Original 32oz. Beers for $4.00.
Yo man, Let's go grab the Flight Instructor Special after work.

Flight Instructor 

A career or part time job that involves watching the Hobbs meter tick while spending unusual, long, and demanding hours in the cheapest, stripped down, mechanically unsound aluminum can all for the goal of displaying the magic of rote learning to a student. Sometimes the aluminum can is also known as being airworthy, but that is a made up word the mechanics will use to comply with the legal mumbo jumbo and is hardly ever true. The majority of the instruction is given in the busiest airspace with little to no safe guarding; such as reliable radios, transponders, or even the most basic necessity-transparencies you can actually see out of. The students, the prime income of a flight instructor, are stubborn, top-gun wanna be pilots that no matter how ever you try to persuade differently about the aircraft only having one 100HP engine, will still rotate the nose to fifty degrees on takeoff, that is if they even bother to show up for the lesson from being to (insert bullshit excuse here).
I think I will work three other jobs to pay for my one flight instructor career.
Flight Instructor by Laszload November 24, 2009

Instructinar 

(N) The presentation of instructional material via a digital and/or prerecorded platform.

(V) Instructinaring. The act of presenting or creating an instructinar.
Maeve won’t let me listen to Colbert cuz she is being all responsible and doing an instructinar.
Instructinar by Teacher Smith August 28, 2020

weapons of math instruction 

Instruments for teaching mathematics can also include calculator, pen, rubber etc...

Some of those who carry WMIs, are suspected of being part of Al-Gebra -network.
The key members of Al-Gebra -network are claimed to have acquired vast amounts of Weapons of Math Instruction.
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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