Evolution of Aye Yah?

How did "aye yah" get its start in our language? For example, "Waste not, want not — aye yah."

Did it originate in the northeast or southern California? I’ve googled but cannot find a definitive answer regarding "aye yah."

Or when one says, "Christmas presents, aye yah." What does that mean? I heard it was a common utterance of forest rangers.

Your thoughts?