kiss good-bye - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Be forced to regard as lost, ruined, or hopeless, as in Now that both kids are sick, we'll have to kiss our vacation in Florida good-bye. This usage ironically alludes to a genuine good-bye kiss. [Colloquial; c. 1900] Also see kiss off, def. 2.