Randall Munroe's latest xkcd strip:
This time around, Munroe might have been inspired by the widespread peeving about Joe Biden's overuse of literally in his Democratic National Convention speech. (On the Atlantic Wire, Jen Doll was inspired to write a two-part series on literally and other "crutch words.") Or perhaps the inspiration was this interview with Rob Lowe about how literally became the signature verbal tic of his character on "Parks and Recreation."
(As for the hover-over text about the Ghost of Subjunctive Past, I wonder if it's alluding to the subjunctive alarmism recently documented here.)