yo mama's so fat she is on both sides of the family.

yo mama's so fat when a yellow school bus goes by
she thinks its a twinkie and chases it.

yo mama'a so fat people jog around her for exersise.

yo mama'a so fat that we had to grease the door frame
and hold a twinkie on the other side just to get her
through.

yo mama's so fat that the whales mistake her for a whale
and then start singing "we are family".