Maybe an artificial, vulgar composition of *****-frigging-phobia, where fecophobia means the fear of ***** (human waste) and frigging is a rude insertion.
EDIT: Well, not even latin words related to human waste are allowed in this forum. That does not really help explaining, I guess. I just cannot imagine that the above terminus might be a repeated problem here...
This FECOFRIGGINFOBIA is the Headline of Chapter Eight in The Humanure Handbook, and this chapter is talking about those people who seem to be an irrational fear of humanure compost.