1.) 60s. Nickname or reference to your mom. "Geez, how long did your old lady ground you?" 2.) 70s. This is a term of endearment used to describe a wife, girlfriend or significant other. "The old lady is going to kill me if I don't get this lawn mowed." 3.) Per Captain Obvious: an elderly woman.
1.) A wife or significant other, usually referred to as an "old blade".
2.) Derog. A loud cantankerous woman.
3.) Irish. Derog. A gaudy dressed or bizarre hot mess. Sadly, she's unaware that she stands out in the crowd.