A woman who desires a man for no purpose other than to have him impregnate her so that she can have a baby. Just like a gold digger
, but for a baby instead of for money.
She's 40, never married or pregnant, reads books about baby care, aleady bought her future imaginary baby a rattle, and says that she wants to have a baby NOW and it can be with me or with any other guy but it has to be NOW. I think she might qualify as a baby digger.