GP uses these terms in a straightforward fashion. Understanding is literally two google searches (or ChatGPT questions) away!

- "post-modernism" - as in rejection of the values of enlightenment; rejection of reason, and ultimately rejection of the idea that there exist solutions to problems that can be discovered by people cooperating in good faith;

- "neo-Marxist" - a softer take on Marxism, less about bloody revolutions, more about hearts and minds; figures the class struggle is a spent topic for now, so it tries to create new social divisions to keep people motivated.

Also, if you're to believe Wikipedia entry[0], a label adopted by a group of people trying to subvert mental health institutions so they breed revolutionaries instead of healing people. I wish I was making that up...

EDIT: I'll just quote that last bit verbatim, the whole subheading on Wiki as it looks right now:

  Neo-Marxist feminism
  
  Some portions of Marxist feminism have used the neo-Marxist label.[16][17] This
  school of thought believes that the means of knowledge, culture, and pedagogy
  are part of a privileged epistemology. Neo-Marxist feminism relies heavily on
  critical theory and seeks to apply those theories in psychotherapy as the means
  of political and cultural change. Teresa McDowell and Rhea Almeida use these
  theories in a therapy method called "liberation based healing," which, like many
  other forms of Marxism, uses sample bias in the many interrelated liberties in
  order to magnify the "critical consciousness" of the participants towards unrest
  of the status quo.[17][18][19][20]

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[0] - https://en.wikipedia.org/wiki/Neo-Marxism#Neo-Marxist_femini...