Yo mama so old she knew Burger King when he was still a prince.
Yo' Mama is so fat, if she buys a fur coat, a whole species will become extinct.
Yo mama is so fat she fell in love and broke it.
Your mom is so stupid she tried to drown a fish.
Yo momma so stupid she got hit by a parked car!
Yo momma so dumb she threw a ball at the ground and missed.
Yo mamma so ugly that her birth certificate came with an apology letter from the condom factory.
Yo' mama so fat, people exercise by doing laps 'round her!
"Madam, your son just called me an ugly swine!" The mother apologizes shamefacedly, "I'm so sorry, I must have told him like a thousand times it is wrong to judge people just from how they look..."
Yo' Mama is so fat, she buys clothes in three sizes: large, extra large, and "Oh my God, it's coming towards us!"