noun, Informal: Usually Disparaging and Offensive.
a member of any of several fundamentalist groups of chiefly young people (Jesus people) originating in the early 1970s and emphasizing intense personal devotion to and study of Jesus Christ and His teachings.
a Christian with an intense enthusiasm for Jesus Christ and His teachings.
Members of an evangelical Christian religious movement among young people, esp ex-hippies and drug addicts: in this light the herds of Jesus freaks/ Jesus freaks, gypsies, lunatic right-wingers, leering conventioneers(1960s+ Counterculture)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source