Yo momma's so fat, her belt size is "Equator."
Yo momma is so ugly her momma had to tie a steak around her neck to get the dog to lick her.
Yo mama so dumb she tried to make an appointment with Dr. Pepper.
Yo momma's so fat, when she uses the keyboard she presses every key at once!
Yo mama so stupid, she returned a donut because it had a hole in it.