Fuck: Word Taboo and Protecting Our First Amendment Liberties is a nonfiction book by law professor Christopher M. Fairman about freedom of speech, the First Amendment to the United States Constitution, censorship, and use of the word fuck in society. The book was first published in 2009 by Sphinx as a follow-up on the author's article "Fuck", published in 2007 in the Cardozo Law Review. It cites studies from academics in social science, psychoanalysis, and linguistics. Fairman establishes that most current usages of the word have connotations distinct from its meaning of sexual intercourse. The book discusses the efforts of conservatives in the United States to censor the word from common parlance. The author says that legal precedent regarding its use is unclear because of contradictory court decisions. Fairman argues that once citizens allow the government to restrict the use of specific words, this will infringe upon freedom of thought.
The book received a mostly favorable reception from news sources and library trade publications. Library Journal described the book as a sincere analysis of the word and its history of censorship, Choice: Current Reviews for Academic Libraries called it stimulating, and the San Diego Law Review said it was thought-provoking. One reviewer said that the book, like the article, was a format for the author to repeatedly use "fuck" rather than analyze it from a rigorous perspective. After the book's release, Fairman was consulted by media sources including CNN and The New York Times, as well as the American Civil Liberties Union, on issues surrounding word taboo in society.