A "hang around" is the first of various levels of membership in the Hells Angels biker gang.
A hang around is described as
friendly to the organization but is not an actual member yet. They typically go to parties, buy the t-shirts and
try to make contacts within the organization to help boost their membership
level. Hang arounds also ride with the group whenever there is a ride but otherwise they don't get involved in the organization; they
never hold offices within the group and they typically do not participate in extreme group activities such as retaliation or gun trafficking.