Yo' Mama is so fat, I had to dip her in flour to find her wet patch.
Yo' Mama is so stupid, she gave your kids a "Yo' Grandmama Is So Stupid" joke book.
Yo mama so old her drivers license in hieroglyphics.
Yo momma so fat when she steps on a scale it says TO BE CONTINUED...
Q: How did the medical community come up with the term "PMS"? A: "Mad Cow Disease" was already taken.
Q: What is white at the top and black at the bottom? A: Society!
Yo' Mama is so poor, she rolls her own tampons.
Yo mama's so fat, she walked across the dance-floor...and the band skipped!
Yo' Mama is so old, she calls her waterbed the Dead Sea.
Yo mama is so dumb she stuck a battery up her butt and said, "I got energy!"