Usually stands for "butt fucking egypt" or "bum fucking egypt". Usually a place so far out of the way its like driving from San Francisco to Egypt just to get a pair of shoes or to go to an amusement park. Possible roots includes when wanting to do some immoral or illegal activity, you would go as far away as possible so no one would know what you are going.
Why are all the outlet malls or Indian Casinos usually out in BFE.
BFE stands for “bum fuck Egypt.” As I understand (and other people have corroborated), it derives its existence from another expression “bumble fuck” (I am unsure if it's one word or two), both of which mean "out in the middle of nowhere." I am fairly certain that the inaccurate “butt fuck Egypt” derived from bum being the English term for buttocks. Clearly the definition of BFE is the same regardless of what one believes the “B” stands for, but I thought is was worth correcting.