Yo momma so ugly, she had to get the baby drunk so that she could breastfeed it.
Yo momma is so ugly Fix-It Felix said, "I can't fix it."
Yo momma is so ashy, every time she rubs her arms it snows.
Yo mom is so dumb that she thought Dunkin' Donuts was a basketball team.
Yo momma's so fat, the only way to get her out of a telephone booth is to grease her thighs and throw a Twinkie in the street.