Yo Mama Ugly is a selection of the funniest yo mama so ugly jokes. Here is a sample of jokes you will find in this app: Yo mamma is so ugly she made One Direction go another direction. Yo mama is so ugly that she gave Freddy Krueger nightmares. Yo mama so ugly, her birth certificate is an apology letter from the condom factory. Yo mama is so ugly she made an onion cry.