met ‧ ro ‧ sex ‧ u ‧ al /ˌmetrəʊˈsekʃuəl $ -troʊ-/ BrE AmE noun [countable] informal
a man who lives in a city and who spends a lot of time and money on his clothes and appearance. Although a metrosexual may not be ↑ gay (=homosexual) , his behaviour is similar to the way gay men are typically thought to behave.