estas gordo [thats a really mean thing to say] lol
Tómate tu tiempo.
Gordo means fat in Spanish as an adjective.If you are talking about fat as a noun, than it would be grasa.
Gordo
No gordo
su grasa
Tu tienes cinco pies de altura
Every day tell her something good about herself. For example "Jenny, your hair is really pretty and has such a nice color. I wish i had hair like that." Stay away from comments like "Wow Jenny, youre so skinny, youre not fat at all." Because she will react in a defensie way, and think youre a liar and not beilive anything else you say. It will take a while to regain confidence, but its worth it :) If that doesnt work, help her eat healthier, not diets, but healthy. And as she goes along, priase her for doing it and say things like "youre looking better already!"
cordo fue
dedo gordo
You're not fat = Tu no eres gordo/a (male/female)
You would say "guapa pero gorda".
me estoy poniendo gordo