In the English language, there are certain words and phrases that convey meaning beyond their literal translation. Ultimately, such words and phrases become slang, which is a form of speech that conveys an idea or emotion, beyond what is written or said. For example, bestowing praise and excessive flattery on an individual for the purpose of currying favor with said individual is “buttering someone up” in slang.
I have never quite understood the appeal of Zombie movies and shows, particularly, The Walking Dead. After a couple of episodes, it was clear that the world was in a zombie epidemic and society quickly collapsed, with the requisite zombie attacks, blood, gore and roving bands of the “uninfected.” This is a common trope in the end-of-the-world, apocalyptic fiction genre.