An adjective to describe something that is a big chore. From awesome, but none of awsome's positive connotations remain through the link - the similarity with awesome is simply used to increase the chore-ness of the task.
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!