Pogue
Pogue or POG is American pejorative military slang for non-combat or non-infantry personnel.
History
"Pogue" may have entered the American military lexicon during the Civil War through "póg," the Irish language word for "kiss." In this telling, the word "pogue" was popularized by deployed Irish-American sailors who were envious of onshore personnel who still enjoyed the affections of their sweethearts.By World War I, "pogue" was used by U.S. Marines to refer to a male homosexual. In World War II, its definition shifted to Marines thought to be soft or unfit for duty. By the time of the Vietnam War, "pogue" referred to rear echelon support personnel. Paul Dickson's War Slang humorously defined "pogue" during Operation Desert Storm as "anyone who arrived in the Gulf after you."
In the modern Marine Corps and Army, the oft-used acronym "POG"—standing for "Person Other than Grunt," with "grunt" being slang for an infantryman—may have originated as a backronym for "pogue." Some have argued that "pogue" and "POG" are of disparate origins and meanings. Though the term is usually considered condescending and derisive, opinions vary about its level of offensiveness.