The act of rubbing tires on the curb so much they become white, resembling white walled tires.
Chuck: Wow, when did Jack get white walled tires?
Ted: He didn't, those are Ghetto White Walled Tires, he cant parralel park.
Maddie: Debby spent 10 minutes parralel parking yesterday!
Alex: Yeah, she's working towards Ghetto White Walled Tires.
When a group of ghetto kids block the hallway, preventing kids who actually give shit about grades and stuff from getting to class.
Teacher: Alex, you're late. Can you explain to me why?
Alex: I got blocked off by a Ghetto Wall.