double-your-age-minus-seven 

The exact opposite of Half-your-age-plus-seven except it determines the reasonable "oldest" acceptable age a person could date so ((your age)*2-7)=X
As X is the oldest acceptable age a person could/ should date.

To find out what age limit (upwards) you should abide to then use this:
Double-your-age-minus-seven
Ex.

22*2-7=37

So the oldest I should/could date would be 37 years old

or

25*2-7=43

double-your-age-minus-seven by Chewietedy December 4, 2013

semen suckin sea serpent of the seven seas 

A female who appears to have sucked so much semen over the years that she has become pale and skinny almost albino like and has traveled the world extensivley seeking out other victims,like a vampire she waits in the darkness of the sea A.K.A the world for to suck every man dry!!!

(CHRIS): Shit Todd you don't look so good.

(TODD): Yeah man I know I met this slut last night and I took her $2 ass home and she completly sucked the life force out of me. I think she was a semen suckin sea serpent of the seven seas!!!!

semen suckin sea serpent of the seven seas by squirtdonkeys July 23, 2007

one eight seven 

a fucking awesome song by the awesomest band of all time senses fail

one eight seven is the best song ever

one eight seven by fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff August 27, 2006

twenty-seven 

the composite integer between twenty-six and twenty-eight

-What's 9,085,716 divided by 336,508?

-tewnty-seven

twenty-seven by The Mad Mathmatician August 9, 2005

sonic seven up 

the feeling of being sonic seven up. or it could be like sonic seven up the really good weed. the feeling of being sonically seven upped

whoa guys, im really seven upped right now... ya man, sonic!

sonic seven up by kale September 27, 2003

Alaskan Seven 

When deprived of female interaction, 3 or 4s become 7s.

Shit, that chick was pretty good looking!
No bro, that's an Alaskan seven. you need to get out more.

Alaskan Seven by jajathehut November 11, 2011

Twatty-seven 

A Twatty-Seven is a sexual position where one person lies down on top of another while they both lie on their stomachs facing each other. The woman then proceeds to ride the man's face until he cums inside her.

We twatty-seven last night it was awsome

Twatty-seven by Jordan Sinclair February 27, 2020