The Hollywood sign has been changed to "Hollyweed" on a few occasions, once in the '70s after legislation that would decriminalize marijuana, as well as for a scene in a movie. Since then marijuana culture has defined LA through the prevalence of medical marijuana. People have tried to profit from the Hollyweed name by selling t-shirts with the silly moniker.
Sunny P is a local nickname for Sun Prairie. I guess it's a takeoff of the orange juice like drink, Sunny D.
Savannah has earned this somewhat dubious designation, probably due to the popularity of local 'ghost tours' among tourists.
The common name of the Newport Southbank Bridge. Given its color and status as a pedestrian bridge, the nickname isn't going away anytime soon.
The bridge connects downtown Cincinnati Ohio to Newport Kentucky. The bridge crosses the Ohio River and is just over a half mile long.