Joke

Yo mama so ugly that when she was born the doctor slapped your grandparents.

Yo mama so ugly that her mother had to feed her with a slingshot.

Yo mama so ugly that she has to do job interviews while she is facing the wall.

Yo mama so ugly that when she visits her therapist they make her lie face down.

Yo mama so ugly that she is the reason Spider-Man wears a mask.