A dandy is a man who places great importance on his physical appearance, refined language, and leisure activities which are pursued in a casual manner. He cultivates an image of nonchalance while dedicating significant effort to his self-presentation and style. Dandies emerged in early 19th century Britain and were epitomized by Beau Brummell who emphasized cleanliness, elegant dressing, and an understated demeanor.
2. What is a
dandy?
A dandy, historically, is a man who places
particular importance upon physical
appearance, refined language, and leisurely
hobbies, pursued with the appearance of
nonchalance in a cult of self.
https://en.wikipedia.org/wiki/Dandy#Beau_
Brummell_and_early_British_dandyism