Yo Momma's o fat she supplies 99% of British gas.
Yo Momma's so fat she sank the Titanic!
Yo momma so fat she goes to a resturant, looks at the menu and says "okay!"
Yo mama so fat that when she works out too long she starts sweating cooking oil.
Yo mama is so fat when she ordered a waterbed, I gave her the atlantic ocean.
Yo mama so fat she don't take pictures, she takes posters.
There were two security guards who worked on opposite shifts, but looked after the same building. Over a period of a year, the night shift security guard noticed that his opposite was putting on weight. So one evening at shift change, the night shift security guard says to the day shift security guard "Hey buddy, you aint half gettin fat". To which the day shift guard replies "Yeah, that's because every time I shag your wife she gives me a chocolate biscuit".
Yo mama's so fat the only alphabet she knows is her KFCs.
Yo mama so fat she irons her pants on the driveway.
Yo' Mama is so fat, she puts in tampons with a bazooka.