Fat Girl Syndrome (F.G.S) is a medically diagnosed condition founded by KC JOHNSON. This condition is common in overweight women and gay men, and causes them to sleep with whoever will take them. It also causes uncontrollable bouts of self pitty, depression and lack of self worth. F.G.S is also commonly mistaken for S.G.S (Slutty Girl Syndrome)
KC: Gurrl, I can't Believe you slept with that old dude, You must have F.G.S
Stepho: I Know, i can't help it!
Stepho: I Know, i can't help it!
by Dr. John-Stone October 18, 2011
Get the F.G.S mug.