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1/2X+7 Rule

A algebraic equation useful for determining the youngest age-cutoff a female may be before the guy dates her. Let X equal the male's age ( Or female, if she's older.), while Y will represent the youngest age of a female a guy may date.

Next, identify the male's age and replace "X" with it. Suppose Jim was 15. We write it like this:

1/2(15)+7

Now, the Order of Operations principal applies here! Divide one by the two to get one half, and then find half of fifteen. Don't forget to keep the seven; It would be disgusting if Jim dated a 7.5 year old!

7.7+7

Add the number, matching up the place value carefully, and there you have it; Jim may date a 14.5 year old girl if he went for younger women.
If you are shit at math and/ or the 1/2X+7 Rule, here's a table for you, you lazy fucktards.

Male: Female:

15 14.5
16 15
17 15.5
18 16
19 16.5
20 17

Etc... So on, and so on. The coefficient is 1/2, while the constant is 7.
by BeerChuggin'German May 23, 2010
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1, 3, 5 rule

When using public bathroom, using urinals, 1, 3 and 5. No 2 and 4 just in case others come in. Never be next to another man using a urinal. Also no talking why using the bathroom.
WTF, your in 2!!
So...
1, 3, 5 rule!!!
by Urban Dictionary January 18, 2008
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Sex on the beach rule 1

Always bring comforter/sleeping bag to beach for sexual encounters. Do not use sheets or a towel..sand will find its way in guaranteed. - Thick fabric makes for a smooth ride.
Night 1, as follows;

Michelle: "The sand found its way through the fibers of the sheet"...ouch Sean!

Night 2, as follows; (after lesson learned)

Michelle: "This comforter is the best, Thanks to "Sex on the beach rule 1" and so are you, Sean!"
by BOMBEDONERZ November 13, 2011
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Rule 1 of Road Trips

Don't be an asshole.

Especially if you're normally an asshole (you know who you are), try your hardest not to be one. Being a dick to anyone will RUIN an entire trip.
Guy 1: Dude, Guy 3 has been such an douchebag to Guy 4.
Guy 2: I'd kick him out on account of violating Rule 1 of Road Trips, but we're stuck with his sorry ass for another two weeks...
by VanguardVince December 12, 2012
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Balling up rule 1.

Rule #1: if the spliff is itta...

don't even pass that shit to me.
guy 1: what's the most important rule in balling up rules?
guy 2: definetly my Balling up rule 1. is the spliff rule
by srak.ec. June 8, 2022
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2 & 1/2 week rule

The aproximate amount of time since last time you had sex/intimacy with someone; when you are the most in danger of doing something stupid just because it's been a while since last time you got any.
Often involves going back to previous partners.

If you get over the 2 & 1/2 week rule phase, your next sexual encounter is much less likely to be looked upon as unfortunate.
-What? Jake went home with Mary again last night?!
-Yeah, he fell victim to the 2 & 1/2 week rule.
by OST November 8, 2007
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Rule #1

Do the goalie as dirty as possible
Damn Paul just pulled out Rule #1 what a nasty shot
by NibbaNugget October 3, 2019
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