“old lady” absolutely is slang for wife.

I know it exists, but I’ve never used it.

Also, I was just being more humorous, than literal, hence the toilet seat comment.

Being serious for a moment, IMO, it sends one hell of a negative signal to your significant other, to your dissatisfaction of them, which I’ve never felt for my own wife.

Edit: …

And for those of you who may disagree with me, ask yourself this. Is your wife actually okay with you using that slang, or do they just act like they’re okay, but inside it bothers them? Do they see it as a term of endearment, or as a reminder of reality?

Reminding your wife that she’s old, even playfully, may not be something she wants to hear.

And generally speaking, women seem to care more about aging than men do. That’s why when someone asks you how old your wife is, when she is in earshot, you always say 18, or at the very least 21! 😜

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