1. A term used to describe a girl that skateboards. They usually don't like being labeled it, either. They can't just be "skaters" like the guys, they have to be seperated by gender, and called "skater girls." But the guys don't have to be called "skater boys" because skateboarding is a male dominant sport.
2. A girl that worships Avril Lavigne, and wants to be "punk rock" and try to dress cool. A girl that really skates will NOT refer to herself as a "skater girl."
A girl that likes to skate: Want to go to the skatepark?
A "skater girl": Yeah, one sec! Let me like grab my skateboard thing and my Avril CDs so we can totally jam out for sure!!
A girl that likes to skate: You're fucking gaytarded.