why is xkcd called xkcd?
xkcd, sometimes styled XKCD, is a webcomic created in 2005 by American author Randall Munroe. The comic's tagline describes it as "A webcomic of romance, sarcasm, math, and language". Munroe states on the comic's website that the name of the comic is not an initialism, but "just a word with no phonetic pronunciation".