To demonstrate one's true talent, fortitude, ability, courage, or worth (to someone). No one thinks you stand a chance in this match, but you go out there and show them what you're made of! This could be the biggest trial of my career. Time to go show what I'm 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!