A documentary that is misleading, often using slight of hand and statistics, purposely designed to fox* you.
*Fox = To trick or fool by ingenuity or cunning; outwit. To baffle or confuse.
Note: It is often incorrectly thought that 'foxumentary' came about as a disparaging term for documentaries seen on the Fox network. This is not the case, and all networks my put out foxumentaries. It is merely a coincidence that the fox network is perceived by many as putting out nothing but foxumentaries.
Fuxus - (fucks'us): verb, - a very intensive fucking done to two or more people (usually a large group).
Noun - a person of below average intelligence; dull.
Proper noun - Supervillain General Fuxus from the planet Nebulon, hell bent on world domination. Known to be overcompensating for having a small member. Also known to be able to produce mass amounts of semen at a time.
"Dude, where is our pizza? I'm telling you, Papa Johns always fuxus."
"Yo James, quit being such a fuxus and help me bury this dead prostitute, bro."
"Look! It's General Fuxus back from the dead to kill us all! Run!!"