Fex

A fight that happens while having sex.

Jeremy and I were totally going at it when I mentioned something I had no idea would start a fex; I didn't realize how mad he was until he lost his boner.

by themerm8 February 13, 2008

FEX

acronym: Future EX (boyfriend/girlfriend)

OMG that guy is SOOO guna be my new FEX

by bunbuzz October 23, 2009

Fex

To have Facebook sex; i.e. engaging in and having conversations with an attractive male or female over Facebook. Also, any flirtatious interactions between two members of the opposite or the same sex via said social networking site.

"Dude that chick's profile pic is so hot. We're totally going to fex tonight."

"I just fexed with Johnny! Maybe he'll ask me to Prom now."

"He's a fexer; we fexed over Facebook Chat earlier today."

by ReginaAlice December 1, 2009

FeX

Mischievous yet genious Counter-strike player. Co-founder of Legendary "Stonecutters" clan.

Also known as "SC2-FeX"

Holy Shit! FeX is playin' on my server!

by Smith, John December 2, 2003

Fex

A person who is, or peceived to be fake.

I used to be a Fex but I gave that up because it's ultimately not very satisfying lying to people.

by Bex {For Paul, Man of few words} March 13, 2007

Fex

"Future Ex." Existing entirely of unpaid bills, legal paperwork, or the need to pick up the rest of your stuff.

"Wonder where my Fex is now. I want my pictures back. And she needs to sign this shit."

by indice August 11, 2009

fex hair

fake sex hair,default sex hair.

The fex hair was supported by bethygirl on Halloween.

by Pat Harris October 3, 2006