A person who is designated by administration at your place of work to clean out the refrigerator on a regular basis. This person sets up rules and regulations as to how they will discard "expired" food but rarely enforce the rules properly. It is believed the "expired" goods find a way into the Fridge Nazi's home after exterimination.
Ian - "Man, I had a frozen pizza in here last night and I marked my initials and date on it but now it's gone!"
Mark - "Fucking Fridge Nazi."