Well, I've a couple of names, all of which began rather shrewdly...
Fishyfool: In my 2nd year Science class, one was watching a rather interesting Biology video completely not-at-all-related-to-pr0n incapacitated, something about digestion. My mouth was agape, and said science teacher noticed and advised me that unless one wished to be called fish for the rest of my life, one should shut said mouth.
Naturally the term 'fish' stuck like Yache+SD Garchomp in the OU metagame, and became my nickname. Fastforward a couple of years and my first steps to the internetz, where I decided to play this MMOG called Dark Throne(which still exists, egad!). I merely took my nick, and added a word to the end of it, such as 'fool', and henceforth fishyfool was born, who may be seen on shoddy and SPPfail, among other places.
Raverist: This here comes from DT directly, when one was in the game a few months. There was this guy called RavErz, who was simply put one of the wiser guys in the forum, and often came up with amusing quips that made it into sigs. One time in a heated discussion, I simply became bored and mentioned that I was converting to Raverism, a religion I made up devoted to RavErz, and now said religion is more of a forum clan, albeit very bloody strong. As note of this, one had decided to go with Raverist as a dual meaning, with the first being that I was a Raverist, adn the second that I bloody made it.
Anything else here may or may not be contradictory, and I don't play DT as much as I used to, simply due to me finding a superior game.