Noun
steel magnolia (plural steel magnolias)
(chiefly Southern US) A woman who exemplifies both traditional femininity and an uncommon fortitude.
EDEN CONFIDENTIAL: How 'Steel Magnolia' won the £5 million. Source: Internet
On Princess Haya's side was Baroness Shackleton of Belgravia, known as the 'Steel Magnolia', who represented the Prince of Wales in his divorce from Diana, Princess of Wales. Source: Internet