My friendDamian is morbidly obese. He spends all day sitting around watching the price is right and eating bonbons. He is a fat mess. He is too fat to fit in our canoe.
a guy weighing over 100 kilograms(220.462 pounds for you americans). Could be a guy or a girl, most likely a word to describe your substitute gym teacher
Sub Gym teacher: greetings maggots im your gym teacher for today men
Class: *whispers among selves* That dude is morbidly obese!