Author has written 12 stories for Utena, Card Captor Sakura, Good Omens, Twelve Kingdoms, Eyeshield 21, and Venture Brothers.
"They're Willdews," she said.
"Willdews, willdews, what's a willdew?" She threw back her head and chortled, this was rare for her and I thought that she had dismissed my question with her mirth.
"Well, it's like this. They are ladies, they'll never be anything else. But they won't marry because they live together in a bungalow. And when they are at home it must be 'Will yer do this or will yer do that.' Got it? So, they are Willdews." At this the other women laughed. I still did not understand but accepted the explanation.
--Extract from Forties' Child by Tom Wakefield.
Update: I now have an A03 Account; just search for "Willdew" and you'll find it.