Yo' Mama is so stupid, she's as useless as a screen door on a submarine.
Yo' mama so poor, she fills her ice trays with toilet water!
Yo' Mama is so fat, when she did a cartwheel, she kicked an angel in the nuts.
Yo' Mama is so dumb, she got fired from a blow job.
Yo' Mama is so ugly, she's going to be in trouble when the baboon wants its ass back.
Yo' Mama is like a virus, if she spreads, we're all screwed.
Yo' Mama is so ugly, the only difference between her face and a bag of crap is the bag.
Yo' Mama is so stupid, when her batteries die, she buries them.
Yo mama's so lactose intolerant, human kindness makes her throw up!
Yo mama's so technologically unsavvy, she leaves out pieces of cheese next to the computer!