kiss something goodbye | kiss goodbye to somethingidiomPart ofkisskiss something goodbye | kiss goodbye to somethingkiss something goodbye | kiss goodbye to something — idiomidiom1. To accept that you will lose something or that something will not happen.1.idiomDefinitionTo accept that you will lose something or that something will not happen.ExampleIf you miss this deadline, you can kiss your bonus goodbye.After the accident, he had to kiss his dream of being a pilot goodbye.