Fat Farmer 

Someone who cultivates belly fat as a lifelong hobby. They are ardent defenders of McDonalds, Burger King and any other fast food franchise that helps them grow belly fat.

Growing fat is considered their greatest achievement.

That Fat Farmer has been growing fat since a young boy. He is a skilled professional.

The trick to being a fat farmer is pretending the amount of pounds you weigh equals the amount of money you have in the bank.

Fat Farmer by pilsburydoeboy March 31, 2013

Former fat kid syndrome

When someone who was previously a fat/unattractive child loses weight or "glows up" and overcompensates for their past insecurities by acting out. Usually they end up acting like the same people who bullied them growing up.

Friend 1: Emily lost weight and now acts like she's better than everyone.
Friend 2: classic Former fat kid syndrome.

Former fat kid syndrome by 1234456hjk July 22, 2020

FFK Syndrome or Former [Fat Kid] Syndrome 

A person who, in the past was fat and/or utterly unattractive, but now is considered attractive by society, yet still retains the mental, and emotional status of a fat kid and therefore does not understand social cues.

"Jane may be hot now, but she still suffers from FFK Syndrome or Former Fat Kid Syndrome"

FFK Syndrome or Former [Fat Kid] Syndrome by 1122 February 5, 2009

FatFarmer

A noob, Not uber. Someone who is not good lame or pathetic. Also see asshat and/or assclown!

You are Fatfarmer.
I don't wanna be FatFarmer.

FatFarmer by Mojo Jojo January 10, 2005