Your momma is so stupid she put airbags on her computer in case it crashed.
Yo mama so stupid, she got hit by a parked car.
Yo momma's so fat, she tripped over Wal-Mart, stumbled over K-Mart, and landed on Target.
Yo mama so ugly she gives Freddy Krueger nightmares.
Yo momma's so ugly she makes the blind go crippled!