Section 8 (military)
Section 8 was a category of military discharge employed by the United States Armed Forces which was used for servicemembers judged mentally unfit for service. The term "Section 8" eventually came to mean any service member given such a discharge, or behaving as if deserving such a discharge, as in the expression, "he's a Section 8".
This type of discharge could be granted for a wide variety of perceived problems, including low intelligence, incompatibility with core military expectations or responsibilities, alcoholism or other chronic addictions, pathological lying, psychopathy, personality disorders, enuresis (then believed to be a mental disorder), psychosis or antisocial behavior. A variety of sexual conduct could result in a Section 8 discharge, including cross-dressing, homosexuality, lesbianism, bisexuality and transgenderism; along with necrophilia, bestiality and pederasty.