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black box 

In programming, a self-contained, independent subroutine or program module designed to perform a single task; the user has no knowledge of its internal structure but can use it by passing a clearly defined set of input parameters.
That module is a black box. We'll never know how it works; we only know it generates pron.
black box by blak box October 10, 2003

Black Box 

A 'black box' describes the state of mind one can experience that is associated with isolation, pain, frustration, and other negative synonyms of the like.

It describes how one feels when they are trapped, obstructed, or even empowered (even if empowerment is false) by something that is affecting them psychologically.
Person 1: I find myself returned to my 'Black Box'. I forgot how I got here, or how I ever even found it in the first place. When I'm here, I don't feel like myself. But to tell the trurth, I still am, myself.

Person A: "Daryl's going to the 'Black Box' again... should we help him?"
Person B: "Nah, he can let himself out of it eventually, he's used to it. It's probably for his benefit, it's all he knows anyway. Just let him be."
Black Box by TRWoof June 19, 2018

black box 

A device used by phone phreakers to fool the phone company into giving you free long distance service.

It does this by changing the voltages over the lines to a state where the phone company doesn't monitor and bill.
I use my black box to get free long distance.
black box by Ebe October 6, 2003

black box 

In transportation, the term black box refers to any of a number of systems designed to collect and preserve data for analysis after an accident, such as a flight data recorder, event recorder, or automotive event data recorder.
After the plane crash, they retrieved the black box to reveal that there was a bug in the flight controls systems that caused the crash.
black box by Anonymous23985u93 December 23, 2013

black box 

a cable box thing used to get free cable.
i used a black box until it broke... now I'm stuck paying for cable

Black Box 

Believed by some to exist only in ancient greek mythology, but known by a few select men to exist in the open world.

According to most theories, the black box is a blackened lock box containing precisely one thousand condoms. This box, only opened once every thirteen years to a certain individual of superior strength. Once opened, the box opener, or the Jehosaphat, must use every single condom in a 24 hour period. If he does not complete the task, his sexual organs will implode violently, effectively killing him. If he successfully completes the task he will be blessed with a cock of magical size and powers. The length will be precisely 6 inches, when folded in half, before getting up. Also, the victorious Jehosaphat will have complete control over his crotchal region. Erection and ejcatulation at complete whim.
Dave Chappelle ~ Queemo, I just found the black box!
Queemo ~ Open it up fool!
Dave Chappelle ~ I don't know man, that's pretty nasty bitch!
Spang Man ~ It's what's for dinner
Dave Chappelle ~ Byaaaaah!
More from Urban Dictionary

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
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
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