Internet memes are one thing, but there's a lesser-seen version of the idea. A fancy internet meme that sweeps the world comes from a new idea, but just as something can be picked up and shared around quickly and to a vast audience so can old ideas, or ideas small enough to not get a Big Name for themselves.

Small example; one person, somewhere, uses the expression "Couldn't hit the broad side of a barn". Into reader's minds it goes, and they themselves bring it up at a...