a krsna-bhakta to the degree that he has suddha-krsna-bhakti (pure devotion for Krsna)
The fool who gives up sex, chocolate, television, money and personal accountability in order to follow around some rich guy with a funny name; see guru.
A person who worships the personality of a guru or master, having a fundamentalist attitude to their teachings, using them as an object of bhakti in order to attain Enlightenment and Liberation. Depending on the discrimination of the person, their guru may be genuine or (if they lack discrimination) fake and abusive. An ordinary devotee is generally not as close to the guru or master as a disciple. More