Yo mama is so fat that when she gets in an elevator, it has to go down. Yo mama is so fat that she walked into the Gap and filled it. Yo mama is so fat that she doesn't eat with a fork, she eats with a forklift. :3
Yo mama so stupid, she stuck a piece of paper to the TV and called it Pay-per-view! ...Believe me, that one's funnier aloud.
Yo mama so fat, that when Bob the builder saw her, he said. "Bob the builder can we fix it? Bob the builder no we can't!"