Outing is the act of disclosing an LGBT person's sexual orientation or gender identity without that person's consent. Outing gives rise to issues of privacy, choice, hypocrisy, and harm in addition to sparking debate on what constitutes common good in efforts to combat homophobia and heterosexism. A publicized outing targets prominent figures in a society, for example well-known politicians, accomplished athletes or popular artists. Opponents to LGBT rights movements as well as activists within LGBT communities have used this type of outing as a controversial political campaign or tactic. In an attempt to pre-empt being outed, an LGBT public figure may decide to come out publicly first, although controlling the conditions under which one's LGBT identity is revealed is only one of numerous motives for coming out.
It is hard to pinpoint the first use of outing in the modern sense. In a 1982 issue of Harper's, Taylor Branch predicted that "outage" would become a political tactic in which the closeted would find themselves trapped in a crossfire. The article "Forcing Gays Out of the Closet" by William A. Henry III in Time (January 29, 1990) introduced the term "outing" to the general public. (Johansson&Percy, p. 4)
While the term is recent, the practice goes back much further. Outing was a common put-down of Greek and Roman orators. Before the Christian era, sodomy was not illegal in Greek or, most believe, in Roman law, between adult citizens, but homosexual acts between citizens were considered acceptable only under certain social circumstances. Both Romans and Greeks sneeringly deemed vulgar the persons engaged in those acts.