Souvenir Slugfest is a term used to describe a type of event where participants compete to find the most unique and interesting souvenirs. The term is often used in reference to flea markets, antique shops, and other places where people can find unique items. The term 'SHINER' is a 6-letter word that refers to someone who is particularly good at finding these unique items. They are often able to find items that others may have overlooked or missed.