kiss something goodbye
idiomPart ofgoodbye
kiss something goodbye — idiom
1. to accept or expect that you will lose something or that something will not happ
1.idiom
Definition
to accept or expect that you will lose something or that something will not happen as you planned
Example
When the landlord raised the rent, the young couple knew they could kiss their savings goodbye.
If you do not submit the essay on time, you can kiss that top grade goodbye.