Jesus freak

noun

, Informal: Usually Disparaging and Offensive.

1. a member of any of several fundamentalist groups of chiefly young people Jesus people originating in the early 1970s and emphasizing intense personal devotion to and study of Jesus Christ and His teachings.
2. a Christian with an intense enthusiasm for Jesus Christ and His teachings.

Jesus freak

noun

1. informal.
   a member of any of various Christian groups that combine a hippy communal way of life with zealous evangelicalism

Word History and Origins

Origin of Jesus freak¹

First recorded in 1970–75