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.
Your momma's pussy is so hairy, when your brother was born he died of rugburn.
"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.