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Zombie Distraction Food. This is the title you'd give to someone you'd have around incase of a zombie apocalypse. This would need to be a person you dislike for what ever reason so you can sacrifice them to save your self.
The word ZDF is used in the same way as the term DUFF would be used.

by Espy AKA [Ninjatastic-Espy] April 23, 2009