metrosexual

Short definition from Wiktionary

Noun

1. 1
   A man — typically urban, heterosexual, and affluent — who is concerned with personal appearance, such as personal grooming, fashion, and aesthetics in general.
2. 2
   A heterosexual man who is seen, sociologically, as having attributes common to homosexuals.

Adjective

1. 1
   Of or relating to a metrosexual or the metrosexual lifestyle.