Yo mama so ugly when she went outside it was a black out.
Yo momma so ugly she threw a boomerang and it refused to come back.
Yo mama so ugly when Santa came down the chimney he said ho! ho! hoooollly shit!
Yo' Mama is so ugly, her imaginary friend played with other kids.
Yo mama's so fat when she stepped on a scale it said: "A.B.C.D.E.F.G get your fat ass off of me."
Yo mama so ugly, even hello kitty said goodbye.
Yo mama so ugly, people break into her house to close the curtains!
Yo mama's so fat when she sat on a tree it made paper.
"Madam, your son just called me an ugly swine!" The mother apologizes shamefacedly, "I'm so sorry, I must have told him like a thousand times it is wrong to judge people just from how they look..."
Yo mamma so ugly that her birth certificate came with an apology letter from the condom factory.