Yo momma is so ashy, every time she rubs her arms it snows.
Yo momma is so ugly Fix-It Felix said, "I can't fix it."
Yo mamma is so fat she walked past the TV and I missed 3 episodes.
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.
Yo momma's so fat she can't even jump to a conclusion.