The fief (alternatively, fee, feoff, fiefdom) or feudum (in Latin), under the system of medieval European feudalism, often consisted of inheritable lands or revenue-producing property granted by a lord to a vassal who held seisin in return for a form of allegiance, usually given by homage and fealty. Not only land but anything of value could be held in fief, such as an office, a right of exploitation (e.g., hunting, fishing) or any other type of revenue, rather than the land it comes from.
1. The estate or domain of a feudal lord.
2. Something over which one dominant person or group exercises control: "long the independent head of a powerful fiefdom within the Police Department" (David Burnham).
The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company.
For example, let's say you can hardly bear the thought of going in to your job every day, reporting to someone who has a fraction of your talent, intelligence, creativity...or whatever.
Let's say that on top of that, this person is rather obnoxious and all too eager to wield the power of his or her petty feifdom, and probably not to your benefit (ask me how I know...;)
Maybe this individual you report to in your 9-5 job is more concerned about feeding their ego and maintaining an inflated sense of importance, at your expense.
Your stomach starts churning just thinking about it.
In fact, let's be honest: Maybe this is utterly disgusting and insulting to you and your sense of dignity.