Ole Lady refers to a woman whom your relationship status lies somewhere between girlfriend and wife. It projects commitment and still rolls off the tongue better than "That's my girlfriend."
Buddy: "Dang Dale! Who's that you've got hanging on your arm there?"
Dale: "Oh man, you haven't met my ole lady yet now have ya?"
A female Love interest you can see yourself growing old with.
This is my ol lady.
I am about to take my ol lady out for our anniversary.
A lady that is so fat that she can’t move on her own
Damn that bitch so much of a big ol fat lady that her elbow has a camel toe