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

by what is a internets? August 14, 2016

"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

instead of one man having to sleep on the floor when sharing a hotel room, one may be under the sheet while the other is on top of it. this way the two will never touch.
by will38373830 March 28, 2007

The "Mundane Rule", proposed by Matt Jarbo (Mundane Matt) is the rule that any time a meme becomes popular it will be declared "ist" (Racist/Sexist)
by Skua September September 26, 2018

by pRomethiu5 June 24, 2019

by Semsolk December 8, 2017
