Meaning of moment of truth

mo'ment of truth'

Pronunciation: [key]
  1. the moment in a bullfight at which the matador is about to make the kill.
  2. the moment at which one's character, courage, skill, etc., is put to an extreme test; critical moment.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.