The term "Black Jack" referred to rogues and scoundrels during the eighteenth century, often featured in romantic literature. This name evokes images of charming highwaymen and daring gentlemen clad in plumed hats, highlighting a romanticized view of that era.
In contrast, the reality experienced by the narrator in "Outlander" by Diana Gabaldon is starkly different from these fanciful depictions. Rather than embodying the charm associated with the name, the actual presence of these figures is more complex and likely darker than the romantic notions suggest.