1.) A wife or significant other, usually referred to as an "old blade".
2.) Derog. A loud cantankerous woman.
3.) Irish. Derog. A gaudy dressed or bizarre hot mess. Sadly, she's unaware that she stands out in the crowd.
She is a part of the elite, preppy bon chic bon genre (BCBG). Very uppity middle-class, equestrian life with a slight hint of bourgeois. Peter York and Ann Barr collaborated to bestow upon you the grand Official Sloane Ranger Handbook. They were often seen in high society London wearing Hermès or Liberty silk head scarves distinctively tied just below the chin (see images above).