a man who is much concerned with his dress and appearance
"He spent an hour choosing between three different silk ties, proving he was truly a dandy when it came to his own presentation."
A man very concerned about his physical appearance, refined language, and leisurely hobbies, pursued with the appearance of nonchalance in a cult of self.
"At the jazz club, the dandy adjusted his silk cravat with practiced ease while discussing philosophy over an untouched martini, never missing a beat or showing a hint of care for his meticulously styled ensemble."
Like a dandy, foppish.
"He walked down the street in his velvet suit, looking so dandy that everyone assumed he had just returned from Paris."
A surname.
"The new mayor, Dandy, announced his plan to revitalize the downtown district last Tuesday."