This means that a person may appear very conspicuous on account of a peculiar dress or manner.
She pined awa like Jenkin's hen.
"To die like Jenkin's hen is to die an old maid."—Jamieson.
She's a bad sitter that's aye in a flutter.
She's a drap o' my dearest blude.
She's a wise wife that wats her ain weird.
That is, who knows her own destiny.
She's better than she's bonny.
A Highlander, in speaking favourably of his wife, is reported to have misquoted this, and characterized her as being "bonnier than she was better."
She's black, but she has a sweet smack.