Sins of the Fathers Chapter 12: The Spot - S3-E10
Corrected entry: In this episode, Kingpin states that despite his appearance, he only has 2% body fat. There is no way a person with only 2% body fat would appear to be morbidly obese (not being toned isn't the same thing). Abdominal muscles start to show at around 9%. Kingpin is a normal person with no super powers, so no special science fiction exceptions can be made for him.
Correction: And Cartman in South Park always says he's not fat, just big boned. It's simply a lie Kingpin tells people. Perhaps the last physician who told him his actual body fat percentage met with an untimely demise so the next person told him what he wanted to hear, that he has 2% body fat.
Bishop73