what (one) is made of

what (one) is made of

One's true talent, fortitude, ability, courage, or worth, especially in the face of adversity or difficulty. No one thinks you stand a chance in this match, but you go out there and let them see what you're made of! This could be the biggest trial of my career. Time to go show what I'm made of!
See also: made, of, what
Farlex Dictionary of Idioms.

what you are made of

your true abilities or qualities.
See also: made, of, what
Farlex Partner Idioms Dictionary

what somebody is ˈmade of

(informal) how somebody reacts in a difficult situation: Let’s see what he’s made of. Go out and show them what you’re made of (= show them that you are strong, intelligent, etc.)!
See also: made, of, somebody, what
Farlex Partner Idioms Dictionary
See also:
  • what somebody is made of
  • what you are made of
  • show (someone) what (one's) made of
  • courage
  • courage of (one's) convictions
  • conviction
  • a stout heart
  • stand tall
  • screw (one's) courage to the sticking place
  • screw up (one's) courage to the sticking place