The phrase "proper goodbye" means a farewell that is done in the correct and respectful way, showing courtesy and consideration towards the other person. Full definition
Frank Lampard, 36, who joined Manchester City in the summer on loan from New York City, says he is upset he never got to say a proper goodbye to Chelsea fans --(Sky Sports) (caughtoffside.com)
Arsenal midfielder Santi Cazorla has revealed that he is sorry that he never said a proper goodbye to Malaga fans before his departure in 2012, reports the London Evening Standard. (caughtoffside.com)
Tomas Rosicky, Mikel Arteta and Mathieu Flamini are three who are all set to leave at the end of their contracts, and all deserve a decent send off this summer, but they will not all feature in the remaining two league fixtures, although I expect the former two to at least sit on the bench for the Aston Villa tie, before getting a proper goodbye from the fans at the end of the game. (justarsenal.com)