Two Stall Rule 

Also known as the two urinal rule. In a mens' bathroom with a row of urinals, whenever someone is using a urinal, the next man to come in and use a urinal will go at least 2 stalls down (ie, you are at stall zero, the one beside you is stall one, the next one is stall two). Whenever someone violates the two stall rule, the person who is violated feels uncomfortable, even if it is the violator's best friend.

Sinks count as stalls as well.

Man, he just violated the two stall rule by pissing next to me!

Two Stall Rule by Teh Burr0 October 27, 2004

Bare Minimum Rule 

When a person gets an overwhelming amount of praise for doing the bare minimum of human decency.

They definitely got covered the bare minimum rule. They didn’t say “the N word” along with the song!

She didn’t say anything about that girl’s weight! good job with the bare minimum rule.

Wow, bare minimum rule. He went to the bar and didn’t hook up with a random chick that wasn’t his girlfriend!

Bare Minimum Rule by MiniGeekGirl June 27, 2020

Platinum Rule 

The Platinum Rule far predates the How I Met Your Mother episode of the same name. It is similar to the Golden Rule, but more considerate.

It states "Do unto others as they would have you do unto them, not as you would have them do unto you."

The Golden Rule is to treat others as you want to be treated, but the Platinum Rule understands and accommodates for the fact that not everyone wants to be treated the same way. It says that we should treat people how they want to be treated, regardless of how we might personally want to be treated in similar situations.

The Platinum Rule is a much more empathetic, sensitive moral guideline than its predecessor, the Golden Rule, which ignores the wishes and preferences of the recipients of the behaviour in favor of imposing the giver's preferences onto others in a misguided attempt at kindness.

I like having doors held open for me, but Jane prefers to open her own doors. Instead of insisting that she shut up and let me open her doors, I abide by the Platinum Rule, and I let her open her own doors when she wants to.

Platinum Rule by Joreth November 1, 2011

Three-Minute Rule 

In Psychology, any new acquaintance that sucks in the first three minutes will suck forever.

Will we meet again?
Doubt it... didn´t pass three-minute rule.

Three-Minute Rule by rperazag May 6, 2010

campfire rule 

The rule: A person who dates a significantly younger person should try to leave them "better off" when the relationship ends.

Erin loved dating men half her age. However, she always practiced the campfire rule.

campfire rule by John Deigh November 13, 2009

Campsite Rule 

An old rule for campers. “Leave the campsite better than you found it.” Many also apply it to other parts of their lives.

Jack: Thanks for filling up my tank after you borrowed my car last week.
Anna: No problem. I always follow the campsite rule.

Campsite Rule by It’sme,yaboy October 30, 2019

Is That A Douchebag Rule? 

When somebody is intentionally doing something against the rules when its not "technically in the rulebook"

The thirdbaseman was kicking dirt as the batter was at the plate when Fred yelled out "Is that a douchebag rule? I know its not a regular rule, but is that a douchebag rule??? I just wanna know, seems like a douchebag rule to me..."

Is That A Douchebag Rule? by XtremeMiggie17 July 15, 2011