For use when ladies are present, instead of mutt's nuts or dog's bollocks Commonly used by professional photographers to describe the excuse of digital cameras as a work tool.
"...having a digital camera is the real Monkey's Marbles, you just take 1000's of shots... one of them has to be good, right?"
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!