an automobile entry to a facility that's obscure and infrequently utilized. The only individuals who know for this entrance would be the staff members just who work there. Golf programs, farms, industrial areas, sports services and outdoor museums often have batcave entrances. Administration frequently frowns on use of this entrance. This term is empowered because of the "Batman" television show from the 1960's. In that program, the entry to your Batcave had been down a little-used soil road that has been obstructed at one end by a fake wood buffer.