My parents never felt that I was college 'material'. [=that I was someone who should go to college]
Her boss regards her as executive 'material'. [=as someone who would make a good executive]
The comedian gets his 'material' from things that have happened to him.
(..) ideas from science fiction Into reality. Time travel is possible, but not very practical. You see, the energy source, the material that you need To keep the throat of a wormhole open Is something so exotic That we cannot produce it in the laboratory. (..)2010 TvShow: How the Universe Works Title: Black Holes Season: 1 Episode 2
(..) is still falling into it And still forming the galaxy. Well, near that central black hole, Things are getting very hot. That material is heating up. Narrator: Gas is speeding into the black hole. But it overloads, And there is no room for all that excess hot gas. (..)2010 TvShow: How the Universe Works Title: Black Holes Season: 1 Episode 2