Incidentally, this is a CD I own, it features the well-known Norah Jones, who annoys me on it by being able to play electric guitar better than I can in several styles, including, on "Down By The River", a nicely loose, jagged lead that captures Neil Young's style pretty well. More at AllMusic here.
The other day I was visiting, as I frequently do, the website AllMusic, and I noticed when the mouse was hovered over a CD or LP cover illustration, there appeared the legend "click to embiggen".
I was pleased to find such a playful use of language at a relatively serious site, but thought little more of it.
However, today it came up at work in conversation, and I decided I should look it up.
It appears it originated in modern usage nearly twenty years ago on "The Simpsons", as well explained at this blog post.
This word searched on Google gets "About 771,000 results (0.18 seconds)". It appears to be well on it's way to general usage and legitimacy.
I am an extremely intelligent, witty and fascinating guy.