FNWK Share definition Flag FNWK - Acronym for "Fact Not Worth Knowing," also known as "Trivia" and usually of an extremely boring nature That idiot's mind is filled with FNWKs such as the speed of light in furlongs per fortnight. FNWK by PervySageChuck December 7, 2015 0 0 Get merch Get the FNWK mug. Buy Now — $32.95 See more merch
