I do think it has been done before, but I'm too lazy to look it up, so... :O
Here's mine, ctrl C ctrl V from my sydapedia page:
"The story behind this nick is a little bit long, but you're reading the sydapedia, so I assume you have some time to waste (Well, you would be if you were reading this where it was originally posted, anyways). My nickname used to be Enzo_Lions, because it was the name of this elf mage I used to play on DnD (Hey, the people I play with can't speak english all that well, they thought Lions was a cool name. Also, I was 14, gimme a break). I used to play some online games with this girl named Sekhmet (Yes, it's the name of an Egyptian lady god, I know), and since we used to share accounts to level faster, we fused the nicks together, in the lovely mashed-up weird jumble of letters that is now this nick. The girl suddenly disappeared one day, but Enzo (Now Sehkmaenzo) kept the accounts, and with them the nickname. it's now nine years later, and the games have come and gone, but the nick stayed, 50% because he had grown used to the name, 50% because he hoped they would meet again someday in the future, and have a quasi-romantic fateful encounter. But, to be fair, he really doesn't hope for that, because she was as ugly as a mutt eating sour candy."
Yep, I stole it :O