old lady

(one's) old lady

1. One's mother. We'll have to wait till my old lady is asleep before we take the car out.
2. One's wife or female romantic partner. I'd better not stay for another drink, or my old lady will start to wonder where I am! His old lady gets pretty jealous when he spends time with his female friends.
See also: lady, old
Farlex Dictionary of Idioms.

old lady

and old woman
1. n. (one’s) mother. (Mildly derogatory.) What time does your old lady get home?
2. n. (one’s) wife. My old woman doesn’t like for me to go out without her.
3. n. (one’s) girlfriend. My old lady and I are getting married next week.
See also: lady, old
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • (one's) old lady
  • (one's) old man
  • at (one's) doorstep
  • at doorstep
  • better (to be) safe than sorry
  • better safe than sorry
  • at expense
  • at somebody's expense
  • at someone's expense
  • at (one's) expense
References in classic literature
'What are they talking about?' inquired the old lady of one of her granddaughters, in a very audible voice; for, like many deaf people, she never seemed to calculate on the possibility of other persons hearing what she said herself.
'How should he know anything about it?'inquired the old lady indignantly.
The old lady made a respectful inclination of the head, which seemed to say that she thought the doctor was a very clever man.
The old lady tenderly bade him good-night shortly afterwards, and left him in charge of a fat old woman who had just come: bringing with her, in a little bundle, a small Prayer Book and a large nightcap.
In the afternoon, the old lady heard from everyone that the shoes had been red, and she said that it was very wrong of Karen, that it was not at all becoming, and that in future Karen should only go in black shoes to church, even when she should be older.
The sun shone gloriously; Karen and the old lady walked along the path through the corn; it was rather dusty there.
'Oh dear!' said the old lady. 'How happy you do make us when you tell us that, to be sure!'
Now, the old lady was exceedingly proud of her bright eyes being so clear that she could read writing without spectacles.
"Is the daughter married?" asked the old lady, without the least semblance of ceremony.
You're in the plot--you made him marry, thinking that I'd leave my money from him-- you did, Martha," the poor old lady screamed in hysteric sentences.
Maud and Fanny agreed, and grandma looked so gratified by their thanks, that Tom followed suit, merely waiting till "those girls" were out of sight, to give the old lady a hearty hug, and a kiss on the very cheek Lafayette had saluted.
The old lady was going south on a visit - probably to a rich relative, most probably to a son-in- law, who had sent up an escort as a mark of respect.
The old lady nearly blowed us into shivers and smithers, many times.'
The little old lady's hearing was remarkably quick.
a maid of honor!" cried the old lady, lifting her hands towards heaven.