(n.) A person obsessed with safety and possessing a fascist belief that everyone who believes otherwise is irresponsible, reckless, and should be publicly chastised.
Commonly have children who wear helmets to do virtually anything fun and are responsible for child proof cigarette lighters, the disappearance of fireworks, and for laws requiring use of seat-belts and motorcycle helmets. Also includes almost anything related to OSHA. Common to internet bulletin boards dealing with outdoor adventure.
syn. safety police
I remember the day when you could actually buy bottle rockets and fire crackers, but the safety nazis took care of that.