your mama's is so old....

 her drivers license says for covered wagons only.

Which was a joke I just heard on the Dean Martin Roasts, which I just discovered are on Amazon Prime. I hope you like them too, I remember liking them as a kid, and they're amazing to watch for the old stars, like Ruth Buzzy, Jimmy Stewart, Red Buttons, Don Rickles, Abe Vigoda, and Rich Little on stage with Howard Cosell - doing his Howard Cosell impression