THE BACK OF BEYOND, subs. phr. (common).An out of the way place; ever so far off.
1887. W. A. PATON, Down the Islands, Introduction. I sat down with no more notion that I should find myself at dinner-time that day at sea than I have of setting out before to-morrow to seek my fortune in the uttermost part of the mysterious country known as the BACK OF BEYOND.