The accumulated knowledge of everything that is currently hip, or was previously hip and the ability to use this data to determine what will be hip in the future. The application of this knowledge could be referred to as hipnology.
“You’re right; I better brush up on my hypnology before we go out tonight”. "That krazy_eskimo777, even though he's a yahoo, it's only obvious he's a master of hipnology".
An International Hippo Society - a group of crazy hippo collectors that collect, talk about and share anything related to hippos. =)*You may be surprised...there are a lot them out there!
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".