Yo momma's so fat...
Your family portrait has stretch marks
Yo mama so stupid she stuck her face into a book to make a Facebook.
Yo Mama so stupid she put a peephole in a glass door!
Yo mama is so ugly, she couldn't join an ugly contest, because was treated as a professional.
"Yo momma so fat when she bungee jumps, she brings down the bridge too!"
Yo mama so fat she got a parking ticket for standing at a crosswalk.
Yo mamma is so fat, her husband has to stand up in bed each morning to see if it's daylight.
Yo momma so stupid she thinks a quarterback is a refund!
Yo Momma so fat, she rolled out of bed and everybody thought there was an earthquake.
Yo Mama so fat when Flash tried to run around her he died before he got half way.