In regards to friendship, the cardinal rule is never dating your friend's ex-boyfriend. When a close friend and their hunny break up, being a friend means you dont try to date, mack, get with, or hook up with the ex. Breaking this rule defiles friendship and ruins bonds and all friendly love with the rule breaker in the circle of friends.
After Max broke up with Sid, Alexis, a 'friend' of Sid, broke the cardinal rule and started dating Max less than a week after the break up. Sid and Alexis' friendship was ruined and Sid soon learned that no one gave two squirts of piss about her emotions, regardless or what was said.
by Sidoese February 5, 2009
Get the cardinal rulemug. by what is a internets? August 14, 2016
Get the Rule 93mug. "If one gest jumped by the Bra Boys in Maroubra's Last Goon Party, and you quickly realize that there is more than one guy, one can exclaim the cardinal rule '1-V-1', meaning the gang must give you a fighting chance, taking you on one at a time."
by bigberg June 9, 2014
Get the Cardinal Rulemug. The Dave rule states that in a male dominated STEM field, in order to not appear sexist, the number of women in a department must be greater or equal to the number of Daves
by samgreg January 3, 2022
Get the Dave rulemug. An un-written rule given to the amount of time food can be consumed after falling onto the floor. You should pick up the food quickly if you want to eat it. Usually 3-10 seconds before it is deemed to dirty to eat.
by Some DUDE!!!!@ September 17, 2006
Get the floor rulemug. It's not gay if there's no eye contact
by Naughtopus May 24, 2019
Get the Dorm Rulesmug. During the game of Beer Pong, one must finish their drink that an opponent has thrown their ball into before throwing their own ball.
by BDubs77 June 11, 2015
Get the Bryson Rulemug.