wifie.

"Aye, wi oot a doot, Erchie here is one o the best undercover wifies we've ever had."

Translation:

wifie: an older woman, usually middle aged or older and usually with character.

"Yes, without a doubt, Archibald, the man standing before us, is one of the best undercover women we've ever had."

22, December, 2001.