Florida Shuffle

The constant switching of lanes by Florida drivers, typically performed without use of blinkers. This dance is typically seen on major highways such as I-95 and creates traffic

Angela: Are you almost here? We're going to be late.
Brad: Sorry, I got stuck in some traffic, everyone was doing the Florida Shuffle

Pennsylvania Dragrace

When a car occupying every lane of a highway is traveling at the same speed (under the speed limit) preventing you from passing

Mike: dude when are you gonna get here, you're already late!
Adam: I know man, I'm caught behind a Pennsylvania Dragrace