wave goodbye

wave goodbye (third-person singular simple present waves goodbye, present participle waving goodbye, simple past and past participle waved goodbye)

1. (idiomatic) To say goodbye by means of a handwave.
2. (figurative) Synonym of say goodbye (“cease to have, or have to do, something”)
   • 2024 February 7, Mel Holley, “Network News: LNER ditches Off-Peak for 70min semi-flexible fare”, in RAIL, number 1002, page 7:

     "At the moment, you know the maximum you pay [to go between London and Scotland] is £87 on a Sunday afternoon. And it's refundable. Now, if your plans change, you can wave goodbye to your money."

• “wave goodbye”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• wave/say goodbye to in the Cambridge Dictionary.