The word has a long and confusing history, to go along with its many long and confusing meanings, but it is believed to date back to Greek philosopher Socrates and his harem of young boys. It is theorised that when the boys reached puberty, he would explain "it's not you, it's me, and my phobia of dropped testicles" (it is unknown, however, if Socrates had a genuine fear of man-balls or if this was a convenient ruse). Since then, the phrase has come into common usage amongst couples who are sick to death of the sight of each other.