What is Fattymcfatfat?
1.
a person who is extremely fat and eats and eats everything, but still thinks they are skinny and believes they can go around in tight clothes and show everything they got.
Michelle is such a fattymcfatfat that she could eat a house.
See
2.
Noun: A person/thing that eats excessive amounts of food and may or may not be obese.
The Don's obese cat Fred is a FattyMcFatFat because he simply eats far too much.
See
3.
a person who is extremely fat and eats and eats everything, but still thinks they are skinny and believes they can go around in tight clothes and show everything they got.
omg that michelle girl is so fat, cant someone tell her that she aint skinny and that she is a fattymcfatfat
See