young female volunteer nurse at a hospital, by 1962, so called from the pink-striped design of her uniform, similar to patterns on peppermint candy.
candy striper can·dy strip·er (kān'dē strī'pər)
A volunteer worker in a hospital.
A young woman who is a volunteer nurse's aide in a hospital
[1960s+; fr the stripes on her uniform, resembling those on peppermint candy]