The phrase refers to comic books, or specific storylines within them, that are notable for the high number of character deaths depicted. These narratives often feature intense action, conflict, and frequently involve a significant loss of life for dramatic or narrative effect. An example would be a superhero comic where a villain decimates a city, resulting in numerous fatalities both on and off-panel.
The prevalence of extensive character deaths in sequential art can serve various purposes. It can raise the stakes of a story, demonstrating the gravity of the conflict and the power of the antagonist. Historically, the inclusion of such elements has been a response to evolving reader expectations, aiming to create a more mature and impactful reading experience. However, it can also be criticized for becoming gratuitous or desensitizing to violence, depending on the execution and narrative justification.