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Substitutional 

Like a teaching career but for subtitute teachers
Person 1: I have been with you throughout your entire substitutional career.
Person 2: Awww
Substitutional by Sexcmommy October 27, 2021
Words you can keep

ligand substitution 

The act of replacing a ligand in a complex ion. This results in a change of colour of the complex ionic solution.
Rasta: What does ligand substitution do?
Me: Ligand substitution results in a different coloured solution!
ligand substitution by TheWizoid November 13, 2016

A "Greg Scott" Substitution 

Whilst playing Fifa online, pretending to make a substitution then quitting due to being one or more goals behind.
I was beating him 1-0 with 5 minutes left to go and he made "A "Greg Scott" Substitution"

substitution 

5 foot Jen is paying for her college through substitution.
substitution by Lori-Ann January 29, 2008

pillow substitution 

The act of switching pillow faces when a pillow becomes too warm due to absorption of the sleeper's body heat. This act can be accomplished by turning the pillow over, revealing the unused and cool side, or by getting a new pillow.
Last night I was pretty hot after doing my girlfriend. So my pillow got really hot and I couldn't fall asleep. That's when I pulled a pillow substitution. It was some tag-team, fresh action.
pillow substitution by juanch June 17, 2010

Tubstitutionalized 

When the dog won't come out of the tub, or runs to it whenever she's afraid or uncomfortable. Situations such as, but not limited to, rain, thunderstorms, high winds, unexpected loud noises, construction, garbage/recycling trucks, doors of port-a-pots closing sharply.
My dog hasn't come out of the tub for more than food or drink in days because it's raining, she must be tubstitutionalized.
Tubstitutionalized by AgilityDiva October 27, 2012

substitution property 

The idea that if a = b, then a may be replaced by b in any mathematical or algebraic expression.
If x = 3, then use 3 instead, its part of the substitution property.
substitution property by Charson Chick September 28, 2017
More from Urban Dictionary
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026

age gate 

An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"

Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
age gate by Banja January 7, 2011
Word of the Day on August 27, 2026

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026

young pup 

a young person, a young adult in their late teens/early 20s.
Ah, you're just a young pup at 23!
young pup by the dog May 30, 2006
Word of the Day on August 25, 2026
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