BFU

BFU stands for "Bezny Franta uzivatel," which is Czech for "common Frank user." It is primarily used in central Europe to describe inexperienced computer users.

The acronym is most often seen online when criticizing other users for doing something stupid. Some classic BFU blunders include taking a screenshot of your desktop with your phone or trying to turn your computer on when it is not plugged into the outlet.

BFU is an insult that suggests the computer user is lacking a brain. Therefore, a BFU is someone who is not very smart or is lacking understanding at the moment (they maybe had a brain fart).

You will likely never encounter BFU since it is a rare acronym, but if you do, a cocky techie will probably use it to deride a struggling novice. For example, an advanced user in a computer tech forum may describe a person looking for help as a BFU if they think they lack intelligence.