blue–haired

:  having blue hair :  having white or gray hair that has been tinted blue with a rinse —used especially as a stereotypical description of an elderly woman … too many blue-haired mothers in the heartland didn't like hearing that their gay son or daughter was worthless and immoral. — Time, 31 Jan. 2000 Jesse is a bichon frisé, the kind of dog that blue-haired women leave their fortunes to. — Jonathan Darman, Newsweek, 27 Apr. 2009