When Chuck Norris was a kid he saw a fat chick, he roundhouse kicked her so hard she transformed. She is now known as Britney Spears.
Yo mama so fat when they took pictures of Earth it looked like Earth had a pimple.
Yo mamas so fat she fits on both sides of the bed.
Yo mama so fat when she climbed into the attic she fell into the basement.
Yo mama is so fat she doesn't need the internet. She is already world-wide!
Yo' Mama is so fat, she has a kickstand on her peg leg.
Yo momma so FAT, she can't save files bigger than 4 GB.
Yo mama so fat people used her as a tramp.
"Yo momma so fat even her clothes have stretch marks!"
Yo mama is so fat, it says to be continued, when she gets on a weighing-machine.