What does 'Survivor Car' Mean?

It seems many here are confusing the term survivor with original. If it's original then just use the term original. Survivor conjures up images of actually surviving. Meaning used but unrestored because again, if it was restored then just use the term restored. The other way the term survivor could apply to a nice original car is if it is an undesirable combination. So like a /6 with 4 wheel drums and a bench seat in an otherwise cool car like a fastback. It had to survive being made badass for a long time with grandma fighting off the grandkids for the last 40 years!