Why did they call John Hancock fop?

John Hancock was called a "fop" due to his flamboyant fashion sense and ostentatious lifestyle, which contrasted sharply with the more austere attitudes of many of his contemporaries. The term "fop" refers to a man who is excessively concerned with his appearance and fashion, often to the point of being considered vain or superficial. Hancock's lavish clothing and extravagant behavior led his critics to label him in this way, although it also helped him stand out as a prominent figure in the American Revolution.