"Capper" is a nickname often used for individuals who are known for their ability to "cap" or exaggerate stories, achievements, or experiences. This term can also refer to someone who enjoys playful banter or competition, particularly in sports or games. The nickname is commonly associated with a lighthearted and fun-loving personality. In some contexts, "Capper" may also refer to specific characters in popular culture, such as in video games or movies. For example, Capper is a character from the animated series My Little Pony: Friendship Is Magic, known for his charming and mischievous traits.