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someone who is extremely sexy, a sexy beast.
Bob: Did you see that hot chick, she was such a fex!
Joe: OMG I know
fex by hannah212 December 25, 2008
Related Words
FeX fexting Fexy FEXT fexpensive Fexter fexclamation FEXICAN fexing Fexism
fake sex. Basically sex with clothes on; dry humping.
Hey wanna fex?
fex by TheMonaLisa April 29, 2011
"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."
Fex by indice August 11, 2009
Foot Sex. Similar to playing "footsie" but more interactive with sound effects and improvised orgasm sounds.
uh..... let's have some fex.

boom chica wa wa
Fex by NicksLover July 2, 2008
Someone who you used to go out with, who you now relies is pretty fit.
Lucy. "Ahh isn't that your ex over there?"
Ella. "Yeah, wow he's gotten quite fitt"
Lucy. "Hes your fex ;) "
fex by arandomer123 July 21, 2010
"That sex last night? Gross" "Did you fex or something?"
Fex by Honeee May 11, 2016