"Yo momma so stupid she steals free bread!"
Yo momma so stupid she bought a solar-powered flashlight!
Yo' Mama is so stupid, she's as useless as a screen door on a submarine.
Yo' Mama is so stupid, when she was pulled over for drunk driving and asked to walk a line, she said, "Which one?"
Yo mama so stupid I told her I was going to the Super Bowl and she told me not to forget a spoon.
Yo mommas so stupid when she licked a dog she said meow.
Yo' Mama is so stupid, she thinks the Wu-Tang Clan is a Japanese orange drink company.
Yo mama so stupid when she pays her bills she gives pennies to her cash.
Q: How many Republicans does it take to change a lightbulb? A: 200. Ten to attach the bulb to the sun, and 190 to make the sun revolve around the Earth.
Yo mama so stupid she though iHop was a gym!