Yo momma's so ugly, she looked out the window and got arrested for mooning.
Yo momma's so ugly, when she tried to take a bath, the water jumped out!
Yo momma's so ugly, that your father takes her to work with him so that he doesn't have to kiss her goodbye.
Whats the difference between yo momma and a 747 (airplane)? Not everybodys been in a 747
Yo momma's so ugly, they didn't give her a costume when she auditioned for Star Wars.
Yo momma's so ugly,when she joined an ugly contest, they said Sorry, no professionals.