Some of these are pretty offensive.
Your momma has so many rings around her belly, she has to screw on her underwear.
Your momma's tits are so big, when you put your ear to her chest you can hear the ocean.
Your momma is so hairy, she has to part the hair on her ass just to take a sh!t.
Your momma is so fat, you could slap her leg and ride the waves.
Your momma is so fat, she could sell shade.
Your momma is so fat, she has to take a sh!t in the bathtub.
Your momma is so fat, she was lying on the beach and Greenpeace rolled her back into the ocean.
Your momma is so fat, every time she tries to get out of bed she rocks herself back to sleep.
Your momma is so ugly, her baby pictures show the back of her head.
Your momma is so black, the sun sends her bills.
Your momma is so black, when she sits in a Jacuzzi she turns the water to hot chocolate.
Your momma is so black, when she goes out in the daylight the streetlights come on.
Your momma is so black, if you bottled her she'd look like soy sauce.