silver vixen
Female half of "Silver Fox"; a woman who greys or ages gracefully without any attempt to conceal her age, or her natural beauty. Think Stacy London from "What Not to Wear".
"So-and-so is a silver vixen."
silver vixen
A sexy woman with silver hair, or a female silver fox. a silver vixen also attracts younger people.
Guy 1: ohhh a silver vixen.
Silver Vixen
An older, seriously attractive woman, that totally crushes routes.
That Silver Vixen is totally crushing that overhung 24.