a vegan's someone that won't eat meat nor animal products like eggs or dairy because they think it's supporting animal cruelty. A hippy's someone who doesn't believe in violence, is lazy and while they believe in a sort of spirituality they usually achieve it by getting high on drugs and never really get anything done.
Now, my friend Liu Kang didn't eat meat when he could help it, was spiritual, he was against violence too, but he knew how to fight to defend himself and he never did drugs.