Yo mama so fat people used her as a tramp.
Yo mama ass so big your dad's dick gets lost in it.
Q: Why don't fat people were turtlenecks? A: Because turtles are now endangered.
Yo momma so fat, she fell into a black hole and it clogged!
Yo mama is so fat, she doesn't fit in this joke.
Yo' Mama is so fat, when she wears a yellow raincoat, the kids yell, "Here comes the school bus."
Yo mama is so fat, it says to be continued, when she gets on a weighing-machine.
Yo' Mama is so fat, NASA used her to plug a black hole.
Yo mamma so fat when she looked at the scale she yelled, "Thats not my weight, thats my phone number!"
Yo mama is so fat she doesn't need the internet. She is already world-wide!