Abraham Lincoln: pregnant with baby soldiers!
If you want the quick synopsis, it's about how a lot of people use the word "literally" as emphasis--ie, to mean "figuratively," or in the exact opposite way that I've always thought it should be used. Apparently there's a lot of literary history to this alternate usage: Louisa May Alcott ("the land literally flowed with milk and honey"), Mark Twain (Tom Sawyer was "literally rolling in wealth"), and even good old F. Scott Fitzgerald (Gatsby "literally glowed").
WTF? (Another acronym I like.)
The Slate article also talks about other words that are used in contradictory ways--they're called "Janus words," "contranyms," or "auto-antonyms." I've read about these before, and they're awesome. Like scan ("skim" versus "read carefully")--the 2 antonymic meanings are both commonly used!
There's even a blog that tracks the proper use/misuse of literally. (My favorite example relates to the title of this post.) I also love the thought of J. Lo literally being a lightning rod.