An extremely contagious disease that will turn you into an attention-hungry hipster over the course of two weeks. Very widespread in the valley, symptoms include 1000+ facebook friends, careers in frozen yogurt, fixie-riding, and all around hipsterribleness.
Hipster 1 "Did you hear about ben? He caught a touch of that Hipatitis B."
Hipster 2 "Yeah I heard. Supposedly he has new jobs at TWO frozen yogurt places."