What does "shave something off" mean?
"Shave something off" refers to cutting off the surface, or removing something off of the surface, of a person or object. "Shaving something off" or simply "shaving" usually refers to removing face and body hair with a razor. Here, he is referring the cement "shaving off", or cutting off, the surface of the tires on this car because the car braked hard after moving fast. Ex: He is going to shave off his beard today. Ex: She carved the wood by shaving off pieces of it with a tool.