friendnificant other
two people that have gone past friends with benefits and to everyone around them they appear to be dating but havent actually made an offical committment.
guy 1 : whats up with her?

guy 2 : forget it joe has dibs

guy 1 : are they together?

guy 2 : no but thats his friendnificant other

guy 1 : so they arnt together but shes still his?

guy 2 : i just said that