Yo mama's so stupid that under "Education" on her job application, she put "Hooked on Phonics." Yo mama's so stupid when she asked me what kind of jeans I wore, I said Guess and she said "Levi's?" Yo mama's so stupid, at the bottom of the application where it says Sign Here - she put Sagittarius. Yo mama's so stupid, her idea of safe sex is locking the car doors.