not have a ghost of a chance

not have a/the ghost of a chance

To not have even the slightest possible chance of something. After I heard that they required 10 years of experience, I knew that I didn't have a ghost of a chance of getting hired. He knows he doesn't have the ghost of a chance with her, but he's still going to ask her out.
See also: chance, ghost, have, not, of
Farlex Dictionary of Idioms.

not have a ˈghost of a chance (of doing something)

(informal) have no chance at all (of doing something): He doesn’t have a ghost of a chance of passing the exam this year.
The ghost of something is a very small amount that is difficult to see, hear, feel, etc.
See also: chance, ghost, have, not, of
Farlex Partner Idioms Dictionary
See also:
  • not have a/the ghost of a chance
  • not have the ghost of a chance
  • not give a hang (about something)
  • not give a hoot
  • not give a hoot (about something)
  • not give two pins (about something)
  • not a clue
  • (one) doesn't give a rip (about something)
  • don’t give a rip