Yo´ momma is so fat you need to play 6 cloaks to hide her.
Yo´ momma is so fat, the metal needed to cast Plate Armor on her would be enough to build 2 new Aircraft Carriers.
Yo´ momma is so fat, if you cast Mitosis on her and put the copy at the opposite side of the world it would stop turning.
Yo´ momma is so ugly, if you have her in hand and the opponent cast Precognition he gets only a message: "You don´t want to see this!"