15 minute rule

The rule that states you get to leave the office 15 minutes after your last boss leaves.
"Hey Ginny! It's time to leave! The boss has left the building! 15 minute rule in effect today!"
by Maladroite January 20, 2012
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first nut rule

for a guy; masturbating prior to sex, so when you perform later it, last longer
(keeps stamina)
guy 1: yo i'm bout to go fuck my new girl
guy 2: don't forget the first nut rule
guy 1: haha nah, I already did it.. I aint a quick shooter
by Curtis B. September 01, 2014
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1/3 rule

The rule of thumb for sexual intercourse , esp. in male homosexual activity , in regards to the size of the giving participants penis.
Whenever the penis is larger then 6 inches, then the receiving participants only agree to receive 1/3 of the phallus of the giving participant.

This rule dose not always apply , as some male homosexual intercourse goes by the 'breath through the pain' rule, and clarification is expected to be communicated prior to the encounter over the interwebz or in eye contact in the nanoseconds before the door closes and penetration occurs .
Kevin Smith was interviewing Malcrom Ingram, as Malcom admitted his dismay upon the idea of accepting a full nine inches of raging man meat. Kevin reminisces of his mothers 'frugality' , gets lost in a haze of 'foggy' memory, then returns to introduce to the SModcast community and the entirety of the internet the 1/3 rule.
Kev, this is for you good sir.

tarinbutler3002@yahoo.com
by eat cock-Oh we totally DO October 15, 2010
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nobody stepped on it rule

When someone is just so freakin hungry they disregard all laws of physics and, without hesitation, will eat that delicious outmeal cream pie that's currently on the floor. Who knows how many decades ago this poor Little Debbie fell on the floor, but it's still fully intact, and it tastes good, which is all that matters.
Fred: Aw man, my cookie fell on the floor.
Melvin: You're not gonna eat it??!
Fred: Are you kidding? It's already been 5.092 seconds! I can't eat that infected piece of @#$!!
Melvin: Well, you know I live by the nobody stepped on it rule man.
*Melvin eats cookie*
Fred: DUDE YOU'RE GONNA GET MALARIA!!

R.I.P. Melvin: 1988-2008
by SmellsPrettyBad March 06, 2008
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Rule against perpetuities

A legal term used when a lawyer doesn't know what the hell they are talking about or has a complete lack of knowledge on an area of law.
Also a term used when a lawyer cannot be sued for malpractice
Lawyer Lexi: Hey can you help me with my 10(b)(5) pleading?
Lawyer Larry: Uh no that's totally rule against perpetuities to me

Lawyer Lenny: Hey I heard you screwed up and are now being sued for malpractice
Lawyer Leslie: No I only screwed up the rule against perpetuities so they can't sue me
by LawraLaw April 29, 2010
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The Rule of Urban Dictionary

Every definition in Urban Dictionary always gets at least one thumbs down, in fact someone well thumbs down this definition
Person 1...Don't Bring Me the Horizon said every definition gets a thumbs down, so I gave him a thumbs down
Person 2...Thats the Rule of Urban Dictionary
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three day rule

A rule established by the norms of society about the contact information received by people on the dating scene.

Scenario: A man receives a phone number from a woman in public. If he calls on day one, he will seem desperate. If he calls on day two, he will appear as if his interest is too strong and still desperate. However, if he waits until day three, he appears genuinely interested, and not clingy or needy.
Person 1: I got a girl's number today; should I call her tonight?

Person 2: No, you should give it the three-day rule, man.
by Shifty Eyed Goat June 16, 2004
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