In a Pent House or Flop House, Jitters Are Jitters

I have heard the term "Park Avenue drunk," used more than once in A.A. meetings and also in conversation around the club house. I suppose it means the man or woman in A.A. who was born into what is known as "Society" and who was fortunate enough to have financial security and was protected in such a way that it was impossible for him to kick all this background overboard however hard he tried.