kiss something goodbye
US /kɪs ˈsʌmθɪŋ ˌɡʊdˈbaɪ/
UK /kɪs ˈsʌmθɪŋ ˌɡʊdˈbaɪ/

1.
告别, 放弃
to accept that you will lose something or that something will fail
:
•
If you don't study, you can kiss your good grades goodbye.
如果你不学习,你就可以和你的好成绩说再见了。
•
After the company went bankrupt, we had to kiss our investments goodbye.
公司破产后,我们不得不放弃我们的投资。