Box Sex 

when four people give oral sex to each other in the shape of a square

Chad: "whens the box sex!?"
Michael: "sometime tomite, after you make me a sammich"

Box Sex by Fuck Yo Toast August 25, 2010

box sex 

When two people hide in nearby cardboard boxes and masturbate until orgasm. As seen on Scrubs.

Elliot: Were you thinking about me?
Keith: I always think about you during box sex, you know that.

box sex by CameronGTW June 29, 2011

Hot Box Sex 

When you procede to cut a hole in a 2x2 cardboard box, place hole over your ladies face and poop in the box. remove anus, tape box closed, and let the lady wallow in the stench.

Evan: Hey, did you and her do anything fun?
Emily: fuck yeah. I gave her the hot box sex of her life.

Hot Box Sex by evankimely November 11, 2009

Sex in a box

It's self expalinitory.
You get in a big brown box and just beat beat beat it :
A.K.A : Fuck!

Yeah we had sex in a box.
It's fun pressed up against one another.

Sex in a box by shubuthv February 12, 2009

boxer sex

When a man's penis inadvertently slips in and out of the convenient slit in front of his boxers, typically during a rigorous physical activity.

There wasn't much he could do about the boxer sex he was having during his basketball game.

boxer sex by King Freezy May 27, 2010

SexBoxed

When a girl gives you head while you're playing xbox 360

"Dude, Adella's so desperate. She sexboxed Alan last night"

SexBoxed by Dub C kid February 17, 2010

SeXbox LIVE 

People that use Xbox LIVE as a means of having "sex". More simply, a synonym for cybering.

SeXbox LIVE: Move over Disney World! The NEW Happiest Place on Earth!

SeXbox LIVE by YapmelkXela January 19, 2010