Yo Mama so old... Her birthday expired.
Yo Momma so fat she sat on the beach and Greenpeace threw her in!
Your momma so fat... All the restaurants in town have signs that say: "Maximum Occupancy: 240 Patrons OR Your Momma"
Yo' Mama is so fat, she puts in tampons with a bazooka.
Yo mama is so poor, rainbows in her neighborhood are black and white.
Yo mama is so fat that it's still printing her picture she took during her last Christmas.
Yo momma is so stupid, when your were born she looked at your embelical cord and says "It comes with cable!"
Yo' Mama is like a heavyweight boxer: a few licks, a few blows, and she's back to her corner.
Yo' Mama is so ugly, when I walked past your fence, she came out barking.
Yo' Mama is so skanky, she can make out with a toothpick in her mouth.
Yo' Mama's breath is so nasty, it makes onions cry.