According to Wikipedia, this is the definition of Bohemianism:
"Bohemianism is the practice of an unconventional lifestyle, often in the company of like-minded people, with few permanent ties, involving musical, artistic, or literary pursuits. In this context, Bohemians may be wanderers, adventurers, or vagabonds."
I have always taken my style cues from history. Inspired by the hippie and bohemian culture, I tend to feel naturally attune to the gypsy inspired bohemian style both in body and spirit as well as the nature-loving hippie in me who naturally wants to rebel from society and the norm. But there are distinct differences between the purely aesthetic bohemian style and the politically driven hippie sub-culture..