future ex-girlfriend 

A female that isn't your girlfriend yet, but she wants to be, and the male is willing, but knows that he is going to break up with her eventually.

"Meet my future ex-girlfriend, Amanda."

future ex-girlfriend by opiv August 23, 2007

future ex-wife 

Fiancee.

BOB: Are you and Sheila getting married?

JOHN: Hell yeah, she's my future ex-wife Bro!

future ex-wife by Mike Comanche March 4, 2009

Future ex boyfriend 

Pronounced FEB: f-eh-b
One whom you are dating, but know the relationship will come to an end for any number of reasons; religious differences, geographical challenges, or the other person in the relationship is a total douche bag.

Mark: Yeah, so I am moving to Japan in like 5 months
Jessica: Well that sucks
Mark: what do you want to do about us?
Jessica: I guess we are going to have to break up
Mark: pssshhh. In the future

A few days later . . .

Rachel: So what’s up with you and Mark?
Jessica: Oh, he is just my FEB (future ex boyfriend).

Future ex boyfriend by Bessie Lou November 5, 2009

Future ex-husband 

A guy u like but know it will never go anywhere

Hey There goes my future ex-husband

Future ex-husband by Funandgames August 14, 2017

Future ex girlfriend 

Pronounced FEG: f-eh-g
One whom you are dating, but know the relationship will come to an end for any number of reasons; religious differences, geographical challenges, or the other person in relationship is a total douche bag.

Mark: Yeah, so I am moving to Japan in like 5 months
Jessica: Well that sucks
Mark: what do you want to do about us?
Jessica: I guess we are going to have to break up
Mark: pssshhh. In the future!

A few days later . . .

Brain: So what’s up with you and Jessica
Mark: she's just my FEG (future ex girlfriend).

Future ex girlfriend by Bessie Lou November 5, 2009

Future Ex Boyfriend 

Well... There may come a point in time in which a girl sits back and looks at her dearly beloved and thinks what was i thinking... Nose picking, rapid burping, greasy hair, strange obsessions... Get the fuck out... I'll give him a few weeks to build up to the crash.

Amber: Why the hell are you still dating that greasy haired, hoot picking freak?

Becki: Don't worry, getting rid of the bastard in a few weeks... He's my Future Ex Boyfriend.

Future Ex Boyfriend by Beckiiiiiii August 11, 2010

My future ex GF 

When you start a relationship with some chick but you know you're going to dump her soon or later, for any specific reason. It's just a matter of time. Like foreseeing your future with a relationship, mainly just sexual OR she's not that good but she's just OK for the time being.

Person1: hey dude, can you show me your new gf photo?
Person2: you mean my future ex GF? here, take a look, is she hot or not??

My future ex GF by samer_exodos June 27, 2016