Mr Rodaton is a crude term used to describe one's Penis, typically in the pursuit of a gyatt. Often the term is used in the context of a game or inside joke.
Mr Rodaton loves to play hide and chase the rod, the gyatt couldn't escape.
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!