The rule of 90 is referring to the appropriate number of certain things you'd need if a civil or worldly crisis were to occur and you'd be put into a survival situation.
For instance if a zombie apocalypse were to occur through the rule of 90 you'd need food to last atleast 90 days, a fire arm with atleast 90 rounds of ammunition, water to last 90 days and a map which shows atleast 90 miles squared of the surrounding area.
Again if you survived a plain crash through the rule of 90 you'd need to find supplies to last 90 days, you'd wait by the crash sight for 90 days to be rescued, when setting up a shelter you'd set it no more than 90,000 metres away from the crash sight.
And so on
Again if you survived a plain crash through the rule of 90 you'd need to find supplies to last 90 days, you'd wait by the crash sight for 90 days to be rescued, when setting up a shelter you'd set it no more than 90,000 metres away from the crash sight.
And so on
by 5mi1e5 August 5, 2014

The decision to quit any video games when down by 3 or more scores in the first half, or any other insurmountable deficit.
by roll2tide October 10, 2022

Guy: *Pays for a snack in the vending machine*
Snack: *gets stuck*
Guy: “RULE 782! *shakes machine*”
Alarm: *goes off*
Snack: *falls*
Guy: “atleast I got it. Thank god I followed rule 782!”
Snack: *gets stuck*
Guy: “RULE 782! *shakes machine*”
Alarm: *goes off*
Snack: *falls*
Guy: “atleast I got it. Thank god I followed rule 782!”
by HelloImDavid June 23, 2023

When someone works days in a row, then feels those three days were enough to allow them to ditch a day of work.
Oh my god Becky!!! Mrs. Sherley made us pedal so hard last three days of biking practice. I know that the Redlands Grand Prix means so much to team River Bottom, but I need a day off. I'm using Joey's rule to get a day of rest.
by 142backdoor69 June 21, 2016

If you see an extremely racist reply on Twitter and then click on the profile of the person who made the racist reply, you will see a James Wood retweet within the first three (3) tweets on the timeline. This is known as the 'rule of woods'.
by Adi_Zu April 14, 2020

A rule created by a footy supporter known only as Boggs who claims that the team you support should be determined by where you pay your council rates. This you can switch team support whenever you like based on this rule.
by Aiden Summerford September 16, 2022

by Cats game cookie January 10, 2023
