Foppish often implies someone who obsessively follows fashion, to the point of excess. He was so foppish that he changed outfits three times a day.
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Peacock Display
The term can suggest someone displaying themselves like a peacock, with flashy dressing as a notable feature. At the gathering, his foppish display included a bright purple suit.
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Not Always Flattering
While stylish, 'foppish' may also carry a slightly critical tone, suggesting affectation or superficiality. His friends teased him for his foppish concerns over which ascot to wear.