Yo mama so fat people used her as a tramp.
Yo mama is so fat, she doesn't fit in this joke.
Yo' Mama is so fat, NASA used her to plug a black hole.
Q: What's the difference between Yo' Mama and a hippo? A: One has a big mouth and a fat ass. The other lives in rivers in tropical countries.
Yo' Mama is so fat, she brought on world hunger.
Yo mama so fat that when she sat on a rainbow she made Skittles!
Yo mama so fat when she went swimming, The Japanese harpooned her and took her back to Japan to sell her blubber.
Yo mama so fat when she looks in the mirror the mirror said: "oh no get out the way."
Yo mama so fat when she fell on my iPod it became an iPad.
Yo mama so fat when she went rolling down a hill no one could pick her up.