The word hasn’t been existing for a longtime actually, it was created in the last century, like in 1994 it was used for the first time by writer Mark Simpson, in his article in 2002 which concerned soccer star David Beckham. The article’s Salon which concerned Metro-sexuality in soccer. A metro sexual is a straight man but often concerned by his own looks and he often loves himself.
This what the man himself had to say about the word he created and has grown tremendously popular in pop culture.
“Metrosexual man, the single young man with a high disposable income, living or working in the city (because that’s where all the best shops are), is perhaps the most promising consumer market of the decade. In the Eighties he was only to be found inside fashion magazines such as GQ, in television advertisements for Levis jeans or in gay bars. In the Nineties, he’s everywhere and he’s going shopping.”