diggermania n.
(Aus./N.Z.) an obsession with digging in the Antipodean goldfields, usu. fostered by one’s failure to find anything.
 | Digger’s Diary 19 Dec. (1978) 23–24: It is called by some diggermania, by others digger-phobia. This dire disease is usually developed about a month after the victim has commenced digging; its symptoms are very varied and curious, and are anything but agreeable to those who are unfortunately connected with the poor afflicted one [DNZE]. |