I think it stands for Professional Managerial Class. https://en.m.wikipedia.org/wiki/Professional%E2%80%93managerial_class https://en.m.wikipedia.org/wiki/Prof

I think it stands for Professional Managerial Class. https://en.m.wikipedia.org/wiki/Professional%E2%80%93managerial_class https://en.m.wikipedia.org/wiki/Professional%E2%80%93manager...