Yo mama is so ugly that when she plays Mortal Kombat, Scorpion tells her to "Stay Over There!"
Yo mama is so ugly that neither Jacob nor Edward want her on their team.
Yo mama is so ugly that they push her face into dough to make gorilla cookies.
Yo mama is so ugly that when she goes to the therapist, he makes her lie on the couch face down.
Yo mama is so ugly that she gives Freddy Kreuger nightmares.
Yo mama is so ugly that when she walks in the kitchen, the rats jump on the table and start screaming.
Yo mama is so ugly that even Bill Clinton wouldn't sleep with her.
Yo mama is so ugly that when she was born, the doctor slapped her AND her parents!
Yo mama is so ugly that she didn't get hit with the ugly stick, she got hit by the whole damn tree.
Yo mama is so ugly that she has 7 years bad luck just trying to look at herself in the mirror.
Yo mama is so ugly that she practices birth control by leaving the lights on.
Yo mama is so ugly that she threw a boomerang and it wouldn't even come back.
Yo mama is so ugly that she'd scare the monster out of Loch Ness.