1. Flip-flops. Origin: the Spanish word "chancletas", meaning sandals.
Shorthand for "Bridge and Tunnel," the term for people who make the commute to Manhattan via bridge or tunnel, but who don't actually live in "the city."
A play on Alex Rodriguez's nickname, "A-Rod". Rodriguez first got the nickname after signing an excessive $252 million contract with the Texas Rangers for ten years, starting in 2001. The nickname has followed him to the New York Yankees, where he was traded in 2004. His 2008 salary was $28,000,000.
How people inside the metropolitan Minneapolis/St. Paul area refers to the rest of Minnesota.
Ho-Flo is a nickname for Homewood-Flossmoor area and its high school (Homewood-Flossmoor High School). Even though it's located in Flossmoor, a majority of students actually lives in Homewood.