The F-word seems to be mainstream in the USA. It started several years ago with “friggin” or “frickin” being socially acceptable and heard often on reality TV and talk shows.
 
And now it appears (at least in Boston) that many radio stations don’t censor out cuss words. One station dedicated to hip hop was leaving in all the lyrics uncencored, and there were some draw droppers. Yet another station had a caller call in program, and all kinds of cuss words were being tossed out left and right, even several F-bombs, it seemed, just for being able to get away with it now.
 
The Oxford University Press just released it’s 3rd edition of The F-Word,  here is some insight to the book. 

In a thoroughly updated edition of The F-Word , Jesse Sheidlower offers a rich, revealing look at the f-bomb and its illimitable uses. Since the fifteenth century, no other word has been adapted, interpreted, euphemized, censored, and shouted with as much ardor or force; imagine Dick Cheney telling Democratic Senator Patrick Leahy to “go damn himself” on the Senate floor–it doesn’t have quite the same impact as what was really said. Sheidlower cites this and other notorious examples throughout history, from the satiric sixteenth-century poetry of James Cranstoun to the bawdy parodies of Lord Rochester in the seventeenth century, to more recent uses by Ernest Hemingway, Jack Kerouac, Ann Sexton, Norman Mailer, Liz Phair, Anthony Bourdain, Junot Diaz, Jenna Jameson, Amy Winehouse, Jon Stewart, and Bono (whose use of the word at the Grammys nearly got him fined by the FCC).
Collectively, these references and the more than one hundred new entries they illustrate double the size of The F-Word since its previous edition. Thousands of added quotations come from newly available electronic databases and the resources of the OED , expanding the range of quotations to cover British, Canadian, Australian, New Zealand, Irish, and South African uses in addition to American ones. Thus we learn why a fugly must hone his or her sense of humor, why Canadian Prime Minister Pierre Trudeau muttered “fuddle duddle” in the Commons, and why Fanny Adams is so sweet. A fascinating introductory essay explores the word’s history, reputation, and changing popularity over time. and a new Foreword by comedian, actor, and author Lewis Black offers readers a smart and entertaining take on the book and its subject matter.