That's exactly what it's referring to, but in a derogatory way, and more gender-neutral. I.e., a place that teaches people how to act professional-class, how to

That's exactly what it's referring to, but in a derogatory way, and more gender-neutral. I.e., a place that teaches people how to act professional-class, how to have the correct opinions and prejudices, the correct conditioned responses, the correct verbal tics, and so on.