Macaroni fashion refers to a style of clothing that was popular in the 1700s in Europe, particularly in England. At that time, men would wear clothes with exaggerated and flamboyant designs, which were influenced by Italian culture. These clothes were often made of luxurious materials such as silk and velvet and were adorned with frills, lace, and bright colors.
As the name suggests, macaroni fashion was named after a popular Italian dish called macaroni, which was considered a luxury food item and associated with Italian sophistication. Those who wore macaroni fashion were seen as fashionable, worldly, and sophisticated.
So basically, macaroni fashion was a fancy way of dressing up and showing off your wealth and status in society during the 1700s.