Simply put, a shit lover, someone who greatly enjoys anything to do with the stuff that comes out of the bung. Also could be spelled Phecal Phanatic referring to a shit lover from Philadelphia or actually anybody from Philadelphia.
Man, I Hot Carled that bitch and then she fucking ate it! What a fucking fecal fanatic!
by Chain Dawg October 13, 2005
One who is infatuated with poo.
Wow, your dad is a real fecal fanatic!
by Effed November 06, 2003