sex 

someone can say this when they think somethings really good or plesurable...or reimnds them of sex.It can also just be another word for greatest thing ever. its an adjective

girl 1: wow this chocolate taste reall gud, here taste it.
girl 2: damn, yo, this chocolate is the sex!

sex by BrOoKlYn95 May 5, 2010

Sex 

Gender, defined by the reproductive organs and distinctive physical features of either gender.
Or
Reproductive act, an act of intercourse, or to put it more bluntly, when you mash the aforementioned reproductive organs together so that the woman, possessing the eggs, may create smaller versions of herself through a painful nine month process.

Alice has a pussy, Jack has a dick. Let's get some steamy animal instinct up in this hizzouse!
( they mash those organs together like arthritic dogs trying to shit. 9 months lather a human in larval stage emerges from Alice's pussy. This larval human is named George and grows up to have sex with another woman).

Sex by CowSex December 20, 2013

Sex 

What the Urban Dictionary revolves around

Look up any word in the UD and one of the related words is almost always sex.

Sex by VeritableDonJuan February 4, 2015

Sex 

When a guy kidnaps a girl and shoves his dick up her ass

Arthur met a hoe on the street so he knocked her out and they had sex

Sex by #420blazeitGetShr3ktM9 April 9, 2015

Sex 

The best thing ever invented

We had sex it's fucking awesome

Sex by I'm not drunk im intocixated December 22, 2008

Sex 

The best thing in the world.

Girlfriend: Do you want to have sex?

Me: Fuck yeah!

Sex by CARLOVER24 March 4, 2014

Sex 

What is the meaning of life u ask, well it involves two things make genitalia and female genitalia, basically u insert ur pencil into the sharpener and after ur done the pencil is smaller, this is because men secrete a liquid known to most people as semen. Semen is filled with microscopic children that make a home in the ladies vaginas and then a famine comes and only a couple survive... Those become your children... ENJOY

"whoa I had some good sex with that Latina hooker, and I was only $4.99"
"Wow Jerry that's cheap for sex"

Sex by J-Hole/Mommabear420 September 12, 2016