As a derivation of Jobbie (a Scottish colloquialism for excrement) a "Jobbie Weeker" is a poo of considerable satisfaction. For example, a ghost poo might be considered a "Jobbie Weeker".
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!