This term may also sometimes be used to refer to members of the school orchestra.
They tend to call other band people bandies, or refering to their friends in band.
The most amazing people you will ever meet.
Spend mornings/ other classes/ lunch/ and after school in the band room.
Have their band director on speed dial and email him.
All of their best friends are in band also. Dates other band people.
"For us bandies, it's marching season, not umm...oh football."
Someone who spends more time and effort on their own or "preferred" band and thus causes them to neglect duties and obligations with other bands that said person may also be joined with.
"Dude he wasnt bandy enough on our part, we had to give him the boot eh?"
Cool Person 1: How the fuck did Bandy end up over here?
Cool Person 2: I don't know I think Nate invited him or something.