When someone defecates in a toilet which has very little water. The poo lands on the edge of the toilet basin and is not completely submerged, creating a deadly stank which diffuses beyond the bathroom throughout the whole house.
Man, can you smell that? I think it's coming from the bathroom downstairs... Tina must have left a beached turd in my toilet.
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!