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.
(..) Alexander Luthor, your security override has been accepted. Genesis Chamber ready to analyze genetic sample. Acknowledging presence of genetic material. Analyzing. I've identified the host as General Zod of Kandor. Acknowledging presence of foreign genetic material. (..)2016 Batman v Superman: Dawn of Justice
(..) Now, Rocky is radio active, but, what he needs from you is an import license. And why would we want to weaponize this material? As a deterrent. A silver bullet to keep in reserve to use against the Kryptonians. So, the day doesn't come, Madame. when your children are waving daisies (..)2016 Batman v Superman: Dawn of Justice