The following is some information and usage about flea market:
Definition: flea market is a noun, which means a market for buying and selling second-hand goods, usually held outdoors or indoors. In the flea market, you can buy all kinds of old things, antiques, second-hand furniture, clothes, books, toys and so on.
Origin: the word flea market comes from French marché aux puces (flea market). It is said that it originated in a market in Paris, where there are many fleas, so it got the word. Later, the word was introduced into English and became a flea market.
Features: The flea market is characterized by a wide variety of goods, low prices, flexible trading methods and dirty environment. Visiting the flea market can not only buy all kinds of unique goods, but also feel the strong folk customs.