[Mack]

Hope you can use some of these bro.

Fat:
Yo momma's so fat, when she goes to the movie theater, she sits next to everybody.
Yo momma's so fat, she's on both sides of the family.
Yo momma's so fat, her blood type is Ragu.
Yo momma's so fat, she jumped in the air and got stuck.
Yo momma's so fat, she has to iron her pants in the driveway.

Ugly:
Yo momma's so ugly, her parents fed her with a slingshot.
Yo momma's so ugly, she walked into a haunted house and came out with a job application.
Yo momma's so ugly, you have to tie a steak around her neck to get the dog to play with her.

Other:
Yo momma's so cross-eyed, when she cries, tears run down her back.
Yo momma's body is so dusty, her fleas walk around with 2 quart canteens.
Yo momma's so old, I told her to act her age and she dropped dead.
Yo momma's so old, she farts dust.