In the documentary, The Food Hospital which is about healthy food and diets, they have a man who eats a lot of processed food and suffers from obesity. A dietician and a consultant surgeon asks him to go on a healthy life style by exercising and so on. So he starts running and in one of the scenes he talks about his running shoes saying "This is what my girlfriend bought me. These are the extra padded turbo mark fat git model that you can run on and not break your knees." what does he mean by "turbo mark fat git model"? By the way the show is British.