When you are able to slam a beer faster than anyone else in the room, or inbibe more alcohol, someone may say, "taystee". The longer drawn out the tay- portion of the word, the better or more challenging the feat performed was.
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!