xkcd is a webcomic that uses stick figures to perpetrate gags on academic topics such as science and linguistics, as well as making the occasional forays into romance, social commentary, and pop culture. It's written by Randall Munroe, a guy with a degree in physics.

Now where have I seen something like that before...?

Look, if you're reading this, odds are you'll enjoy xkcd. Go check it out.

My only regret is that I didn't think of this joke first.

Oh, and by the way, "xkcq" is worth 8 more points than "xkcd" in Scrabble, or a whopping 30 more if both are played optimally on a triple word score. Nyahhh.