How Did Tellevision Do the Valley Girl Voice?

Orana Navarrette: I had always noticed even in high school, that the people from the valley spoke differently. And my twin brother was a surfer, he still is, actually. So i'd go to the beach with him every once in a while. It just, and then there was also words like bitchon and super that came right. You know, contractions like wouldn't, shouldn't, or couldn't, would become wont, shoudnt and coudnt.