do a Melba
do a MelbaAUSTRALIAN
If someone does a Melba, they tell people that they are leaving their job or giving their last performance, and then, in fact, they continue. We all believed that Neil was stepping down, but he did a Melba and carried on. Note: This expression comes from the Australian singer Dame Nellie Melba, who did several concerts that she said would be her last.
do a Melba1 return from retirement. 2 make several farewell appearances. Australian & New Zealand informal
The Australian operatic soprano Nellie Melba (the stage name of Helen Mitchell , 1861–1931 ) made repeated ‘farewell’ appearances.