Metrosexual: "An urban male with a strong aesthetic sense who spends a great deal of time and money on his appearance and lifestyle." Dude: "a man extremely fastidious in dress and manner"The etymology of the word dude is somewhat unclear, but the word's root seems to spring at least partly from what we might consider the Old West. Dudes were Easterners, often from large cities, who came out to western raches in their fancy clothes and perfectly coifed hair.
So, if those folks were from the big city and they spent a fair amount of time worrying about their appearance and lifestyle, wouldn't that fit the definition of metrosexual almost perfectly? Did we really need a new word to describe that type of person when we already had a perfectly good word?
Sure, in recent years, dude has been almost exclusively linked to the modern declarative usage, "Dude!" But there are numerous words in the English language that carry two or more vastly different meanings and people rarely, if ever, suffer confusion as a result.
Down with redundant words! Let dude knock metrosexual back into the sludge pit from whence it came.