F
- Fakabát
- Wooden coat Hungarian slang. After the wooden guard posts placed on street corners.
- Farbror Blå
- Uncle Blue Swedish slang, blue due to their appearance (color of their uniform). The nickname originates from the children's book "Aunt Green, Aunt Brown and Aunt Lavender", by Elsa Beskow, where "Uncle Blue" is one of the characters.
- Feds
- Usually used in the United States to refer to higher federal law enforcement agencies, especially the F.B.I., recently caught on in Great Britain owing to the spread of American media. Also widely used in Australia as a slang term for Australian Federal Police.
- Federales
- Spanish/Mexican Feds.
- Feebs
- Often used derogatorily in the United States by municipal and state officers to refer the F.B.I. when they feel a possible jurisdictional confrontation.
- Filth
- Normally "The Filth", UK, the police. Also common in Australia, as with many other originally British police-related terms (especially given Australia's origins as a Commonwealth Nation with strong British influences, notably in law and policing origins).
- (Name of city)'s Finest
- Used in either admiration, or slightly derisive irony, in the US and UK. In New York City, the term has been adapted to other civil servants, such as "New York's Bravest" (the Fire Department), "New York's Strongest" (the Department of Sanitation), and "New York's Boldest" (the Department of Correction).
- First Bunch of Idiots
- Referring to the F.B.I., the federal law enforcement arm of the United States.
- Fish Cop
- Derogatory term for Fish and Wildlife Officers and Conservation Officers in Canada, particularly Alberta and British Columbia.
- Fist Bandit Teamsters
- Refers to SWAT teams in Australia.
- Five-0
- Originated from the 1960s show Hawaii Five-0.
- Flatfoot
- A term that refers to the large amount of walking that a police officer would do, thus causing flat feet.
- Flat Top
- A term for a police car without lights on top.
- Flic
- French slang for a policeman. Commonly used in the form les flics.
- Flik
- Belgian slang for a policeman. It is derived from the French word Flic. The word is mainly used in the Flemish part of Belgium. There is also a known police series called "Flikken".
- Force
- UK, as in "police force".
- Fruko
- Turkish slang term for the police. Usage of this term reached its peak in the 1960s and 1970s among the university youth, especially those with a left-wing tendency or those otherwise inclined to partake in political demonstrations. The term is believed to derive from the pop brand Fruko, as the officers of Toplum Polisi (Community Police – a special police unit formed in 1965 to deal with public demonstrations and other politically influenced incidents -) riding on their vans in groups of 6 or more wearing their oval hard hats resembled pop bottles juxtaposed in a bottle container. (Plural: Frukolar)
- Folks or Tha Folks
- Southern Louisiana, rarely used.
- Fuzz
- First appeared in the 1920s, corruption of "force" (see above). The term was used in the title of Hot Fuzz, a 2007 police-comedy film.
- Fuzzy Muff
- Similar to the Fuzz created by the comedian Sacha Baron Cohen in the Ali G show.
Read more about this topic: List Of Police-related Slang Terms