The enjoyable transition from one location to another, usually better, location in a group of 2 or more people. One may also be scrollin' simply by exiting a lame situation in hopes of finding a better one. Music is often involved when the transition takes place inside a vehicle.
First person: "Man, this party is lame."
Second person: "I know, right?!"
First person: "Let's scroll."
Driver: "I can't wait to get to Joe's party."
Passenger: "Same here! Let's pump some jams on the way there." (*turns on radio)
Driver: "Now we're scrollin'."