41. Yo mama so old she knew Mr. Clean when he had an afro.
42. Yo mama so old when the police asked her for her ID, she gave them a rock.
43. Yo mama so old Jurassic Park brought back memories.
44. Yo mama so old her memory is in black and white.
45. Yo mama so old I told her to act her age and the bitch died.
46. Yo mama so old she owes Fred Flintstone a food stamp.
47. Yo mama so old she used to gang bang with the Flintstone’s.
48. Yo mama so old she drove a chariot to high school.
49. Yo mama so old she’s got hieroglyphics on her driver’s license.
50. Yo mama so old she took her drivers test on a dinosaur.