xtk was just three random letters that i typed in for an account I created several years ago for a game because I couldn't think of an account name, but ever since then it has stuck with me, and Jason is just my first name
I'm mildly ashamed of mine. In middle school I played world of warcraft *shudder at the memories* and the random name generator gave me ikorolou. My guildmates called me iko for short. It basically became my universal username, and now I'm stuck with it.