Yo mamma so mean even Simon Cowell is afraid to say anything bad about her.
Yo mama so fat, when she farted, homeland security thought it was a dirty bomb.
Yo momma so stupid, the smartest thing to come out of her mouth was a penis.
Yo mama is so dirty that people use her bath water as a chemical weapon!
Yo mama so stupid I told her to do the robot.....and now R2D2 has AIDS