Yo MAMA

Yo mama's so ugly, she made a blind kid cry.
Yo' Mama is so stupid, she put a stamp on a fax.
Yo Mama is so ugly when she was kidnapped her mother sent the kidnappers a thank you card!
Yo mama is so dumb she stuck a battery up her butt and said, "I got energy!"

http://www.jokes.com/funny-insults/2izhfb/

Yo mama so ugly, her birth certificate is an apology letter from the condom factory.Yo mama so ugly, Hello Kitty said goodbye to her

 Yo mama is so ugly that she gave Freddy Krueger nightmaresYo mama so ugly, I put her face on a carton of milk and it spoiled.Yo mama so ugly, they changed Halloween to YoMamaween!Yo mama is so ugly that when she went trick-or-treaty kids said she had a really ugly costume, and she said, What do you mean? I forgot it at homeYo mama is so ugly that when she walks into a bank, they turn off the security camerasYo mama is so ugly, that when she tried to become a model, they said, The hospital is that wayYo mama is so ugly that when she was born her mom said, What a treasure, and her dad said ,Yes, lets go bury it.Yo mama so ugly, Satan died of fright http://www.the-top-tens.com/lists/yo-mama-so-ugly.asp

Yo mama so smell so bad  people behind her and in front of have to hold their mouth and nose.