My husband and I just learned that term "half-back" last June while visiting South Carolina (specifically the Charleston area). We talked to a lot of people who had moved to SC from "elsewhere"... Apparently there are a lot of half-backs in SC.
The half-backs were chased out by the hurricanes and haven’t yet realized the only way they can get away from the storms is to move back up north. The snow birds have done nothing but cause the prices to be inflated and made life miserable for the natives. The cost of living is horrific. One year we are paying a reasonable rent/housing cost and the next because of the invaders rent/housing doubled. Who can afford $800 for a one bedroom and lawdy, lawdy, the traffic is horrific. What use to be a nice area, now resemble DC, New York, etc as far as traffic goes.