What is a sonofagun?

"Sonofagun" is an informal term often used to describe a person, typically a man, who is considered to be mischievous, tough, or impressive. It can be used playfully or affectionately, but occasionally carries a more negative connotation depending on the context. The term’s origin is somewhat unclear, but it is believed to be a blend of "son of a gun," which historically referred to a child born on a naval ship. Overall, it embodies a sense of ruggedness or charm.