Practically anyone who eats too much fatty food and doesn't exercise.
It means that you copy something exactly. You're not even close when you copy something or someone, you're copying them EXACTLY!!(It's kind of scary)
Obesity is growing, especially in the US. I believe there are more people overweight than what their normal weight shoudl be.
Sit on your butt all day, (no exercise) and eat lots of peanuts.
I don't completely understand the question. If you are referring to an individuals case of obesity then you would word the sentence "Case of Obesity." like "John has a severe case of obesity." If you...