sextathon 

A sextathon, like a marathon, but with sex, begins usually in the late afternoon and goes into the wee hours of the morning. Just when you think it will end, it doesn't , because one person just keeps going and going. A sextathon can last hours leaving the parties feeling dehydrated and a bit sore.

I am exhausted, didn't get any sleep. I started this sextathon with my BF and he just kept going , and going. Took me a few days to recover.

sextathon by Funny Moms May 27, 2016

sextathon 

the act of sending numerous sext messages back and forth between two recipients.

Joe: You get me wet like first rain.

Murphy: why limit our sex lives to just us? We can get a big orgy going and call ourselves the freshmen 15

Joe: I need you to love every bone in my student body including mine.

Murphy: I want you inside my Porter Cave

..........And so forth over and over again

Murphy: we're having a sextathon !!!

sextathon by gloodwin June 29, 2011

Sextation 

Sextation is a travel experience, such as a vacation, where the primary recreational activity happens to be engaging in sex with your significant other. It can also be used when there isn't an official vacation, but one is staying at home. Similar to a stay-cation, you don't need to leave home to enjoy the many benefits. It usually implies that the sex is extended, over a day or more, like a vacation, but a sextation.

Oh my God, my new BF is so hot! We didn't leave his house for three days - it was like a total sextation -three nights, and four days. All inclusive. I need a vacation!

Sextation by Funny Moms May 16, 2016

sexmatron 

An apparent device invented by Thomas Edison, referenced by Professor Farnsworth in Futurama: Into the Wild Green Yonder.

You wouldn't ask Thomas Edison whether he knew how to use a sexmatron.

sexmatron by ThreeDeeGamerMan October 24, 2015

Sextating 

The spectator sport of watching other people engage in sex acts. A portmanteau of "sex" and "spectating."

We spent the afternoon sextating at the BDSM street fair.

Sextating by tinadonn September 26, 2012

Sexatron 

A man or woman who is either extremely sexy or can have sex more than the average person.

(Robot of sex= sexatron)

"You want sex again?! You sexatron!"

"Hey sexatron, how are you?"

Sexatron by Alexandra Peace November 5, 2008

sexuationship 

Sexual relationship with no meaning or material benefits.

I'm in a sexuationship. We have sex. We send and receive sexual text messeges. We don't make love. We don't fall in love. We don't exchange gifts. We have sexual relations. And we're done.

sexuationship by A.BITCH. January 30, 2014