eXtreme Knowledge Comically Distributed ?
Source: *shrug*
What is it: I’ll just cite the tagline: “A Webcomic of romance, sarcasm, math and language”. Very often Randall Munroe simply hits right on the mark with a witty remark, a funny line, or the “alt”-text of the image (Hover your mouse on the comic). He has quite a following, usually totally crazy people. Also check out the “blag” linked on the comic page.
Btw, lately XKCD has been featured on Ehrensenf .