A slang term from South England referring to any girl who doesn't shave or trim her pubic hair, or who has quite a large amount of pubes.
Henry: I say old chap, I hear Lady Gifford goes for the au naturelle look "down there", if one knows what I mean?

Charles: I'll say! I heard from Lord Gifford you can never tell when she's naked, for it always seems she is wearing knitted underwear!

Henry: Quite so old bean!
by Sweet Kiwi July 25, 2009
Get the Knitted Underwear mug.