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Obstruction 

An obstruction could be anything involved in an overhead piping system included but not limited to compressed air piping, domestic water piping, mechanical piping, gas piping and steam piping.
High Bay lighting is shown equally spaced- Actual position of lights will be staggered to avoid conflict with ducts, bag rails, and other obstructions.
Obstruction by Obstructionoomas1111 January 23, 2019

obstruction of cop

A crime a (bad) cop charges you because they believe the presence of a badge means that all civilians must comply with all of said cop's orders. Legally, this is not obstruction of a police officer, as that requires the order to be lawful, hence differentiating obstruction of a police officer from obstruction of cop.
Cst. O'Pig: I said GIVE ME YOUR ID
Anonymous Person: I am not legally required to, by the 4th Amendment.
Cst. O'Pig: I'll have to arrest you
A. Person: You can't do that, what for?
Cst O'Pig: Obstruction of a police officer
A. Person: That's not obstruction of a police officer, that's obstruction of cop
obstruction of cop by Stickololo April 11, 2020

Obstruction of Justice 

an action that takes years of practice and is only Mastered by a few. There is only one person so far that has mastered this action. President Donald Trump
Donald Trump insists on self impeaching with obstruction of justice.
Obstruction of Justice by datgv September 24, 2019

Foreground obstruction crew 

People and vehicles at airshows and airports charged with the vitally important task of obstructing photographers trying to get pictures of the aircraft. They typically wear orange shirts and/or reflective vests to enhance their visibility. They are best known for making their appearance *just* when the most interesting aircraft of the entire event is about to pass by, remaining present until they have spoiled the photo opportunity, and then returning to their lair.
Sh*t! My photo of that F-100 was spoiled by the foreground obstruction crew!

vaginal obstruction 

the equivilent of "cock block", but in terms of females
if a girl is trying to flirt with a guy, and someone tries to interfere, therefore obstructing their vagina - vaginal obstruction
vaginal obstruction by melkayz September 6, 2010

inteslanal obstruction 

n. Blockage of the road system caused by presence of too many electric cars.

....................................................................................
Dude! We are never gonna get to the Monster Truck Jam!

I know. There is a Greenpeace Summit in town and an inteslanal obstruction from here to the interstate.

I kind of get a charge out of those guys.

Really? You really said that.
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
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