Yo mama so dumb she tried to make an appointment with Dr. Pepper.
Yo momma's so ugly she makes the blind go crippled!
Yo mama so stupid, she returned a donut because it had a hole in it.
Yo momma so dumb when I said, "Drinks on the house," she got a ladder.
Yo momma is so ugly her momma had to tie a steak around her neck to get the dog to lick her.