What is the meaning of "on a wing and a prayer"?

The meaning of "on a wing and a prayer" is:

with only a very small chance of success

What is the definition of "on a wing and a prayer"?

The definition of "on a wing and a prayer" is:

with only a very small chance of success


"on a wing and a prayer" means

with only a very small chance of success

Example Sentences:

A: How did you do on your medical school exam?
B: I got 51%
A: Do you think you will get into Harvard?
B: Only on a wing and a prayer.

The inexperienced baseball team was on a wing and a prayer as they prepared to play the defending champions.

From the News:

Finding love on a wing and a prayer