back-up booty call
Any time when an individual's ex wants him/her back after breaking up with the person the ex was previously dating.
Mike: Hey Joe. You remember my ex, Samantha?
Joe: Yeah, why?
Mike: Her and I are talking again. Apparently her boyfriend dumped her.
Joe: On back-up booty call I see...
Joe: Yeah, why?
Mike: Her and I are talking again. Apparently her boyfriend dumped her.
Joe: On back-up booty call I see...