Joke

Yo mama so old that when I told her to act her own age, she died.

Yo mama so old her social security number is 3.

Yo mama so old they did not teach history when she was in school.

Yo mama so old that she has a picture of Moses in her yearbook.

Yo mama so old her last name was "Osaurus."

Yo mama so old that she took her drivers test on a dinosaur.

Yo mama so old Jurassic Park brought back memories.

Yo mama so old that archaeologists found ancient pottery in her vagina.

Yo mama so old she babysat Yoda.

Yo mama so old that she farts dust.

Yo mama so old her blood type is dust.

Yo mama so old she still drives her Model T.

Yo mama so old that she remembers when the Grand Canyon was just a ditch.

Yo mama so old that the back of her head looks like a raisin.

Yo mama so old she helped write the Ten Commandments.

Yo mama so old she knew The Outsiders when they were the Insiders.