I collected 200 dozen cackle-berries today, and now I am totally eggshausted... I was accustomed to collecting from just a few dozen chickens on our modest family farm. I shoulda known better than to start a part-timejob at a commercial egg-farm without "breaking myself in" a bit.
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!