An amalgamation of the words morbid and obese. Meaning to be so overweight that simple everyday tasks, i.e.- walking or getting out of bed, become impossible.
Being so fat that others are disgusted by the mere thought of you.
Also see Morbidly Obese.
Most Americans are considered morbese.
"Dude, James is a biscuit away from weighing 500 pounds. I never realized how morbese he was."
"I can't believe of morbese Jane is. It makes me want to vomit every time I see her. It is seriously disgusting."