Yo momma so fat she fell and made the Grand Canyon!
Yo' Mama is so old, she calls her waterbed the Dead Sea.
Yo' Mama's hair is so full of dandruff, when she shook her head, the principal called a snow day.
Yo' Mama is so skanky, she was asked to leave the OTB.
Yo' Mama is so dumb, she got fired from a blow job.
Yo' Mama is like a telephone book: available to the public, no charge.
I could have been your daddy, but the line was too long.
Yo' Mama is so fat, when she rubs her legs together, I smell bacon.
Yo' Mama is so stanky, even the garbage man won't pick her up.
Yo' Mama is so poor, she considers the give-a-penny/take-a-penny cups part of her own "Save Yo' Mama" foundation.