What does “fry cook material” mean?
"Fry cook material" means that SpongeBob wants to prove to Mr. Krabs that he can work as a cook for the Krusty Krab. He is saying that he can learn to be a fry cook. The expression "...material" means that you have what it takes and have the capability to be in that profession. This can be used in different instances as well. For example "computer technician material" means you have the capabilities of working as a computer technician. Another example could be "doctor material." This means that this person has the ability to become a doctor.