A person from Connecticut
Refers to the gentrifying effect of the University of Pennsylvania on the West Philadelphia area.
Cheeseheads can refer to either 1) the foam cheesehead hats made by Foamation, 2) Wisconsinites, or 3) Green Bay Packer fans.
Honolulu's (as well as the rest of Hawaii's) area code is 808. People will sometimes say "representin' the 808" to identify themselves as Hawaiians.
The sulfuric stench produced by Tacoma's paper manufacturing mill.