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.
(..) Homeland Security will be here within the hour. They'll need an update, and they've requested all relevant materials on D.D.K. Which means Travis probably isn't the only thing I've lost today. However it shakes out, we'll handle it. (..)2011 TvShow: Dexter Title: Talk to the Hand Season: 6 Episode 11