kiss good-bye

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.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.