Interesting tidbit in Wikipedia regarding the phrase "quick and dead", which is an old English phrase from the early Bible translations meaning "the living and the dead". But in secular usage, Wiki says the following:
The phrase has become commonly used as a title for works of popular culture, in some cases to describe the act of gunfighting. (See The Quick and the Dead.) Modern authors use this phrase in secular contexts because of the modern English usage of the word quick[original research?] - to mean fast or smart, rather than alive - either as the result of a misunderstanding or for the purposes of creating a double entendre (i.e., quick vs. dead in the context of gun battles, wherein speed is widely believed to be a prerequisite for winning, and thereby, by implication, staying alive). In a similar vein Isaac Asimov, in explaining the term "quicksilver", jokingly suggested that modern readers probably think "the quick and the dead" is a reference to pedestrians in Los Angeles (my underscore).[citation needed]