Yo mama so flat, the wall is jealous of her.
Yo' mama so stupid, she thought the Blizzard of '96 was a new item at Dairy Queen!
Yo' Mama's head is so big, she dreams in IMAX.
Yo Mama so old... When she ran the 100 meter dash, they timed yo mama with a sundial.
Yo mama's so fat, when she plays football she play offense and defense.
Yo' Mama is so ugly, when she walked past the toilet, it flushed itself.
Yo' Mama is so nasty, it sounds like Velcro when she takes her panties off.
Yo' mama so fat, when she was a baby, she took a bath with a rubber albatross.
Yo mama so fat, she leaves stretch marks in the tub.
Yo' Mama is so stupid, she gave your kids a "Yo' Grandmama Is So Stupid" joke book.