To be over what the government believes is a healthy weight limit for certain ages
Wow that kid Adam is really fat for his age
Someone who is fat has eaten to much pizza.
"Dad?"-Tom
"Yes son?"-Dad
"Can you buy me some pizza?"-Tom
"No, i'm not going to buy you pizza again you fat cunt"-Dad
"why?"-Tom
"I don't like children with diabetes"-Dad
A women with a large gut that potrudes trough clothes and grabs attention of various people in public, they ask things like
Are ya gonna do anything about that fat gut of yours
You are far to fat for those clothes
The state of being lazy and just lazing around on the the couch like some big fat person would do.
"G-d, I was so fat yesterday"
"Yea, your such a fat bum"