1.One who engages or believes in earth based spirituality or pacifistic drug based philosophies as part of a larger social counterculture with a basis relating to religion, health or politics often leading to socially unacceptable and potentially dangerous practices.
2.One who exploits a person meeting the requirements of definition #1 for personal gain or financial profit.
1.(Definition 1) "If I have to hear another tree-hugging veggie-fuck wikkie hippan tell me how poor my lifestyle is, I'm gonna go postal!"
2. (Definition 1)
Person 1: "So I passed another <anti-war/pro-choice/animal-rights/pro-marijuana> rally on my way to work today."
Person 2: "Yeah, those god-damned wikkie hippans are at it again."
3.(Definition 2) "I can't believe McDonalds created an Atkins menu. Those freaking wikkie hippans!"