Yo' Mama is so nasty, she can sit on a lollipop and guess its flavor.
Yo' Mama is like a postage stamp: you lick, you stick, you send her away.
Yo' Mama is so ugly, when I walked past your fence, she came out barking.
Yo' Mama is so poor, she considers the give-a-penny/take-a-penny cups part of her own "Save Yo' Mama" foundation.
Yo' Mama is so fat, the donut shop accused her of stealing their jelly rolls.
Yo mama is so stupid she married a carpenter just to get nailed.
Yo' mama so stupid, she walked into an antique shop and asked, "What's new?"
Yo' Mama is so old, her teeth are like stars: they come out at night.
Yo mama so stupid, she thought Ewoks were just Homeless Care Bears on drugs.
Yo mama is so old that God doesn't remember her.