These two women have single handedly shaped the way we think about extreme sex and/or sexual domination. So, you ask, what exactly is a BarbJoan aka BJ? As of 2012, it's the NEW standardized unit for molesting/torturing an elderly woman beyond your physical threshold, while still maintaining an enjoyment level for her. Yes people, she has to be THAT MUCH of a whore.
However, there are 2 important things to remember:
1) You cannot call a sexual act a BarbJoan unless the chic actually enjoys getting annihilated and enjoys physical pain.
2) If you aren't sweating, it's not a BarbJoan so try harder.