Old Grandma has been known to get extremely hot and sweaty in the car, sometimes even throughout the day. She usually gets up and walks around the entire house while listening to music, munching on cookies or popping a few pills. The Granny is a classic example of a "Chubby" person. So when you see a "Chubby" person in a fancy car make sure you give them a wide berth because they may have a problem with "Granny", so be careful!.