Jesus freak

Etymology
The phrase originally was applied to those involved in the Jesus movement of the late 1960s and early 1970s, within the context of the freak scene of that era. However, some Christians now consider it a reclaimed word, as Christians, especially Christian youth, occasionally use it today as a positive term to let others know that they are not ashamed of their belief in Jesus.

Noun

 * 1)  One who is perceived to be showily, sanctimoniously, or obsessively Christian.
 * 2)  An enthusiastic Christian.

Quotations

 * 1986. Felt Ballad of the Band (lyrics).
 * 1986. Felt Ballad of the Band (lyrics).