'Mind! I don't mean to say that I know, of my own knowledge, what there is particularly dead about a door-nail. I might have been inclined, myself, to regard a coffin-nail as the deadest piece of ironmongery in the trade.'
This is from the second paragraph of Charles Dickens' 'Christmas Carol'. The narrator has just told us that 'Marley was dead as a door-nail'.
Poets and other great writers can, and very often do, play with words, as Dickens is doing here for comic effect.
Should such words be common? That's up to Alan.