JigSaw : I guessing you threw that one together. Didn't make sense that a grandma would be married to another woman.

You mama's so fat, she has smaller fat women orbiting around her.

I don't know if this was said yet but

yo mamma so stupid she stared at an orange box container for 2 hours cause it said "concentrate"!

Yo mamma so old that she remembers when burger king was a prince!

Yo mamma so fat when she tried to get up, she rocked herself to sleep!

yo mamma so stupid she got locked in a grocery store and starved to death!

Yo mamma so poor she put a mcdonalds milkshake on layaway!

Yo Mama's like a library - open to the public.
Yo Mama's so stupid she stole a free sample.
Yo Mama's so stupid that when she saw a "Wet Floor" sign
she did.
Yo Mama's so stupid she can't read an audio book.
Yo Mama's so stupid she thought Thailand was a men's
clothing store.
Yo Mama's so stupid she thought Meow Mix was a dance record
by cats.
Yo Mama's so stupid she failed a survey.
Yo Mama's so fat, when she backs up she beeps.
Yo Mama's so fat she's on both sides of the family.
Yo Mama's so fat her belly button has an echo.

Yo Mama so stupid, she sold her car for gas money!

Yo Mama so stupid, I told her to buy a color TV, she came back and said "what color?"

Yo Mama so stupid, she stopped at a stop sign and waited for it to say go.

Yo Mama so stupid, she gave birth to you.

Yo Mama so stupid, she needs twice as much sense to be a half-wit.

Yo Mama so stupid, when the pc said "Press any key to continue", she couldn't find the Any key.

Yo Mama so stupid, she spent twenty minutes looking at an orange juice box because it said `concentrate.

Yo Mama so stupid, I put a Scratch-N'-Sniff sticker on the bottom of the pool and she drowned.

Yo Mama so stupid, she was on the corner with a sign that said "Will eat for food."

Yo Mama so stupid, she thinks fruit punch is a gay boxer.

Yo Mama so stupid, she leaves the house for the Home Shopping Network.

Yo Mama so stupid, she saw a billboard that said "Dodge Trucks" and she started ducking through traffic.

Yo Mama so stupid, she got locked out of a convertible car with the top down.

Yo Mama so stupid, when she messed up on the computer and tried to fix it with whiteout.

Yo Mama so stupid, she saw a sign that said caution wet floor, she peed.

Yo Mama so stupid, if she got a penny for her thoughts, you'd get change.

Yo Mama so stupid, it took her 2 hours to watch 60 minutes.

Yo Mama so stupid, when she saw the NC-17 (under 17 not admitted) sign, she went home and got 16 friends.

Yo Mama so stupid, she took a spoon to the Superbowl.

Yo Mama so stupid, she hears it's chilly outside so she ran outside with a bowl.

Yo Mama so stupid, you have to dig for her IQ!

Yo Mama so stupid, was born on Independence Day and can't remember her birthday.

Yo Mama so stupid, she got locked in a grocery store and starved!

Yo Mama so stupid, that she tried to put M&M's in alphabetical order!

Yo Mama so stupid, she could trip over a cordless phone!

Yo Mama so stupid, she thinks a quarterbacks a refund!

Yo Mama so stupid, she asked you "What is the number for 911"

Yo Mama so stupid, she took a ruler to bed to see how long she slept.

Yo Mama so stupid, she took a umbrella to see Purple Rain.

Yo Mama so stupid, she watches "The Three Stooges" and takes notes.

Yo Mama so stupid, she studied for a drug test.

Yo Mama so stupid, she thought Taco Bell was a Mexican phone company!

Yo Mama so stupid, she tried to drown a fish!

Yo mamas so fat she makes a snorlax look small!

Yo mamas so stupid she challenged herself to a trivia contest and lost!

Your momma is so phat her skillz are pricele$$!

Yo mama is so stupid that she thought a drive in was to drive inside and when she did drive to the inside she crashed and fell asleep inside her car.

Yo mamas so stupid when her mama said stop throwing a fit she went looking for one to throw.

Yo mama is so attractive that the whole world stares at her without looking at what they are doing.

Yo mama so stupid that she drowned in a waiting pool.

Yo mama so fat that everyone that a full class of 36 students uses her as a Bean bag chair.

yo mamas so fat at her kids birthday party she was the bounce house

Yo mama is so poor that she collects pennies that are on the ground and saves them up.

Your momma is so fat god had to create outer space to accommodate her size.

Yo mama so fat she falls through a hole to get to the kitchen.

Yo mama so stupid that she thought Pepsi was a cheerleader cheer.

yo mamma so ugly, she walked into a haunted house and came out with a job application.

yo mama is so stupid, she said am not to R-2( r2d2 from star wars)

Yo mamas so stupid she robbed a bank than came back to ask for change.

yo mama so ugly when she went into a haunted house she got an application

yo mama so stupid she tried to kill a fish by drowning it

yo mama so ugly she haunted Freddy Kruger in his dreams

yo mama so stupid she tried to kill a bird by throwing it of a cliff

Your mama so greasy, the movie theatres hired her to butter popcorn with her leghair.

Your mama so hairy, you got a rug burn when you were born.

Why ya'll insulting my mama, well,
Yo mama so fat she sat on the moon and it rained cheese, want nachos?

yo mommas so fat she uses the equator as a belt.