Suxstitution 

To replace something that is just "OK" with something far worse.

This crappy rental car is a suxstitution for my corvette while it is the shop.

Suxstitution by t-boy May 27, 2012

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"

A "Greg Scott" Substitution by SomeRangersFan April 11, 2009

substitution 

Prostitution by one of short stature.

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

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

The Nolan Substitution 

A method to decide whether to use who or whom in a sentence by substituting in the pronouns he and him into the sentence.

If the subject can be replaced with he or she, use who; If the question can be answered with him or her, use whom.

The Nolan Substitution method examples

It was for him/her (right)
It was for he/she (wrong)
Whom was it for? (Correct question)

He/she opened the box (correct)
Him/her opened the box (wrong)
Who opened the box (correct question)

The Nolan Substitution by Reagan012081 October 20, 2016