An individual so singularly dedicated to pussy ingestion that pussy becomes the main component of said individuals diet...
That Martin is such a cuntivore, last time he sneezed a tampon was blasted from his left nostril travelling almost 40 yards at speeds approaching 74 mph..
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!