Jack of the dust

Jack of the dust is an obsolete enlisted rating of the United States Navy and was used in the Navy Supply Corps. The actual rating was discontinued in the late 19th century but the term survived as a formal title until World War II. "Jack of the dust" is still used today on some ships as an informal title for a culinary specialist in charge of the canned goods storeroom.

Source

 * Terms, Traditions and Customs of the Naval Service