What is On-call Boyfriend/girlfriend?
1.
A friend to have a casual relationship with only for the purpose of filling a temporary relationship void.
Usually present in long-distance friends that choose not to have a long-distance relationship or friends that lead very busy lives and don't want the hassles of a full-fledged relationship.
An extension of a
When visiting the West Coast, I'll get together with my on-call girlfriend for dinner & a movie and usually a night of great sex.