John/Johnny/Johnny-come-lately/Johnny-on-the-spot/stage-door Jornny

American generic term for a bloke, chap, fellow or Mr Average dates from the early 19th century. Johnny-come-lately, a newcomer, is attested from the 1830s, while Johnny referred to a soldier from either side during the American Civil War (1861-65). 'Johnny Reb' is what Union soldiers called Confederate counterparts, and the popular song, 'When Johnny Comes Marching Home' was sung by both sides during the same war. 'Johnny-on-the-spot' denotes a victim, or a man on whom responsibility falls, and is originally American, dating from the 1890s. A 'stage-door Johnny', dates from the late19th/early 20th century and refers to a man who hangs around theatre exits in the hope of interacting with female film stars, chorus girls etc. Johnnie or a rubber Johnnie is also British slang for a condom, and dates from the 1940s.