I cant even think about the number of times i wanted to make a 'your mom' joke in peoples threads. sometimes it is just so fitting.
Here's a few:
You're momma's so fat, she was baptized at Sea World.
You're momma's so fat, she was born on Monday, Tuesday, & Wednesday.
You're momma's so fat, when she wears a Malcolm X jacket, helicopters try to land on her.
Here's a throwback from the 80's:
You're momma's so fat, she wears a microwave as a beeper.