f-word n (sometimes capital; preceded by the) a euphemistic way of referring to the word fuck.
In our culture, F is the letter we relate to most regarding profanities and lewdness--case and point--"the f word"--WTF or LO FL or just FU.
I see the F made up of three simple twigs. F is for fun, future, face book and freedom. F is for facts and figures, familiarity, future, freedom, forgiveness and forever. F is for faith!
