A person who is seen as a lower rank perhaps, but who is seen to be punching above their weight and wanting to really play their role in the grand scheme as a respected person.
What can I say about her, she's a regular tryceratops trying to carve a good name, and life for herself and her soon to be young family.
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!