The concept of the abject is developed by the Bulgarian/French feminist and philospher Julia Kristeva whom I find fascinating but cumbersome to dance around the Christmas Tree with.
However, I think I grasped this much:
The abject is placed outside of the available categories of definition and exists as
an intermediate state
something alive yet not.
The object is situated outside the symbolic order from where it threatens the order and augurs the end of meaning
and at the end of (the) day(s):
death.
Face it or photograph it!