kiss something goodbye
US /kɪs ˈsʌmθɪŋ ˌɡʊdˈbaɪ/
UK /kɪs ˈsʌmθɪŋ ˌɡʊdˈbaɪ/
1.
to accept that you will lose something or that something will fail
:
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If you don't study, you can kiss your good grades goodbye.
•
After the company went bankrupt, we had to kiss our investments goodbye.