Yo' Mama is so ugly, she has to sneak up to water fountains to get a drink.
Yo mama's so ugly that slender-man ran from her. She's also the reason why slender-man doesn't have eyes.
Yo mamas so ugly when Bob the builder saw her he said "Oh cannot fix that."
Yo mama is so fat Donald Trump used her as the wall.
Yo momma is so ugly that Superman lost his supervision and went blind.
Yo momma’s so ugly, they use her face as a cure for constipation.
Yo mama is so fat, the recursive function computing her mass causes a stack overflow.
Yo mama is so skinny... she hula hoops with a cheerio.
Yo mama's so fat, when the police showed her a picture of her feet, she couldn't identify them.
Yo' Mama is so nasty, when she walks the dog, they both use the same bush.