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.
(..) It isn't easy making a blade that big with dragonglass. You're saying you're good, is that it? I'm just saying it's a tricky material to... You know who makes weapons for the wildlings? Cripples and cocksuckers. - Which one are you? ARYA: Leave him be. (..)2019 TvShow: Game of Thrones Title: Winterfell Season: 8 Episode 1