Yo' Mama is so fat, she tried to eat her chicken pox.
Yo' Mama is so stanky, she gets sourdough yeast infections.
YO momma is so old, I slit her throat and dust came out!
Yo Mama is like a refrigerator. Meat goes in and out all day.
Yo' Mama is so fat, when she walked past the TV, I missed a two-hour special of "Lost."
Yo' Mama is so poor, her tv only has two channels: on and not working.
"Yo momma so stupid she steals free bread!"
Yo momma so stupid she bought a solar-powered flashlight!
Yo' Mama is so stupid, she's as useless as a screen door on a submarine.
Yo' Mama is so ugly, her face looks like a horse's ass flapping in the breeze.