FNG syndrome
The term "fucking new guy" (FNG) is a derogatory term, made popular within combatants, military chaplains, and combat medics of the U.S. Army and the U.S. Marine Corps deployed to South East Asia during the Vietnam War, usually to refer to newcomers. == Vietnam War overview == Usually, but not always, the term referred to recruits fresh from the United States who joined pre-existing units in Vietnam.