Yo mama so fat when she uses a space shuttle as a vibrator.
Yo' Mama is so hairy, she has to part the hair on her butt to go to the bathroom.
Yo' Mama is so stupid, she gave your kids a "Yo' Grandmama Is So Stupid" joke book.
Yo mamma is so fat, when she went on a cruise, a walrus jumped aboard and started singing 'we are family'.
Yo mama is so dumb she stuck a battery up her butt and said, "I got energy!"
Yo Mama's glasses are so thick she looks at a map and sees people waving.
Yo mama breath smell so bad when she yawns her teeth duck.
Yo' Mama is so fat, she got stuck in the great outdoors.
Yo mamma so ugly that her birth certificate came with an apology letter from the condom factory.
Yo mama is so black, she died on the sun.