Someone who is overly zealous in their religious persuits. Or someone how haistily becomes overly religious for the purpose of 'fitting in' or perhaps snagging a crush.
John was an athiest until he met Sally and fell madly in love with her. Her father was a leader in the church so John decided to read the bible, go to church, recieve communion and become confirmed.

'John went all Super Faith!'
by Got Tea? August 7, 2009
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