Younger Dr. Emmett Brown: [running out of the room] 1.21 gigawatts? 1.21 gigawatts? Great Scott! Marty McFly: [following] What-what the hell is a gigawatt?
[on the phone, as Marty plays "Johnny B. Goode"] Chuck. Chuck. It's Marvin - your cousin, Marvin BERRY. You know that new sound you're looking for? Well, listen to this. [holds the receiver out]