three one rule 

a rule that states that guys can date 3 grades up and 1 grade down during high school. anything lower and he would be considered pedo-ish.

Senior: Hey, whose that girl you were talking to a little while ago?
Junior: Shes a sophomore.
Senior: Crap! three one rule.

three one rule by John Slate May 2, 2009

from behind rule 

The rule which invariably can be applied to any hot looking female walking away from you whilst you are driving or are passenger in a car or bus. The car passes the female only to find she is repugnant in appearance from the front.

The way, she walked away gave gerald an almost instant semi. Although on closer inspection from the front she resembled the hunchback of notre dame. "Errrr...From Behind Rule" Gerald muttered

An adaptation of BOBFOC Body off baywatch, face off crimewatch

The "From behind Rule" can also be applied to Sarah Jessica Parker

from behind rule by BenLOFM December 15, 2008

25 Past Rule

When waiting for the bus driver in the morning to get to college. Always late? Use the 25 past rule. 25 past the hour? GO HOME! :)

Rick: Dude, does this bus ever turn up or what?

Tom: 25 past rule?

Rick: Schweet! xD

25 Past Rule by Lowiee January 11, 2010

2 Seat Rule

Leaving 2 empty seats open that separate yourself and a stranger upon choosing your seat in a movie theater.

Jimmy: Crap! The theater is packed! The 2 seat rule gods are angry!

2 Seat Rule by nevo17209 January 19, 2010

The Michael Cera Rule 

In "Superbad", the girl does like him back, & they don't have sex.

"Superbad" broke the The Michael Cera Rule

The Michael Cera Rule by Hannibal Lector42 May 14, 2011

Half-Way Rule 

When listening to Pandora the half-way rule applies, meaning that if one is more than half-way through a particular song then you do not skip the song.
This is done in an effort to preserve the 5 skips per hour allowed by Pandora.

"dude this song is total shit, skip it"
"nah dude we're past half-way, i'm not gonna waste a skip"
half-way rule

Half-Way Rule by AgentPtheBA April 2, 2013

50 foot rule 

''The 50 foot'' rule pertains to the distance a male is from a female before he can make an accurate assessment of her appearance. If she is seen from beyond "50 feet" then she is too far away for him to judge clearly if she is worth pursuing.

Male 1. "Man did you check out that girl? She was killer!" Male 2. "No man, did you use the 50 foot rule? No! Well then, you don't if she was banging or leading the cougar line. Don't waste your time."

50 foot rule by partyviking June 29, 2013