I thought it was a silent “e” thing
After skillfully constructing a method for interplanetary internet use, one of my first actions was to become a member of the SDMB. Lacking imagination, I used the name given to me by Edgar Rice Burroughs in his SF novel: “A Princess of Mars”.
Imagine my surprise when I learned that my old buddy from Barsoom, Tars Tarkas, was already here!
Now things are further complicated by the fact that there’s a character on some TV show with a name similar to mine. Life is not this complex on The Red Planet!
In response to several inquiries, I am gald to inform all that Dejah Thoris is alive and well, and that we are still together(except for those times when I am having to rescue her from the numerous evil-doers that roam the dead sea bottoms of her homeland).
I’m a veteran of many road and air trips to Vegas, and my friends and I always have to play the song “Viva Las Vegas” at least once on the car stereo.
But I have not yet inherited my mom’s incredible good luck at the slots, hence the “lost wages” part. 
I am the “smart” dog with glasses from Rocky and Bullwinkle
“Quiet, you!”
Fenris
I started driving race cars in the late 70’s and I used the number 72 whenever possible. At the time Benny Parsons was my favorite NASCAR driver and he drove a car #72. Fast forward to early 1996 and my first computer and a computer sim called NASCAR Racing 2 by Papyrus. I needed a username for online racing and adopted racer72. Been using it ever since for all my usernames.
When choosing my handle for the SDMB
The name GIGObuster came to me.
When I pondered for days
All the geeky ways
I could use computer jargon
And being able to rant
Regarding politics or argon
And say to the ignorant:
You are busted!
Only once in all my time in the SDMB did I use the “you are busted” weapon. I reserve that for occasions when links are available that clearly show the poster lying on top of just ignoring evidence against his/her BS, suffice to say: the troll that was at the receiving end became unhinged and even a moderator reprimanded him. (You’ll have been warned ))
Just in case anybody miss it: GIGO = Garbage In Garbage Out. “buster” was added to mean that I like to destroy bad information. (I notice that some religious sites are trying to say that means Goodness In, Goodness out. But that would twist the meaning)
[sub]PS: yes, IANA Poet. That was ugly![/sub] 
What is no one going to ask where I got my name? ;> Anyway, I got mine from a Fuel song.
Anticay means anti- K. Which means coach Krzyzewski of Duke basketball. A terrible man.
I used to like to keep its meaning to myself but I was attacked on another board for it. They previously had a flamer come through before I got there named Anti-gay who was banned. It was funny after I found out.
Dabrota -
I got tired of my previous screen name - euphemism. So, I needed a name, that I could (at times) pass off as my own real name.
Being the collosal nerd I am, I went to my books, and from one of my sci-fi books, pulled this name. The girl who has it sort of reminds me of me, so it fits 
I’d be most impressed if anyone can figure out which book it’s from…i’m curious if I’m the only person who’s read it.
Enderw24 might know…‘anal sex’ my ass. No pun intended
It’s my name.
Zev Steinhardt
Not exactly. I am a redhead (Ginger) and lived in the far north of Canada, in the Northwest Territories. Even to a Canadian, I was very, very far North. Good try, though.
I think it’s funny that one of my favourite Doper friends is actually named Ginger. She’s also a redhead. It confuses people when I talk about meeting Ginger for lunch or shopping.
Mine’s from my passion for the Lindy Hop, the greatest (and earliest) of all swing dances. Not much is more fun than a good Lindy!
I’m not afraid of cheap beer in a 16oz. can. <erp>
I am something of a Doubting Thomas, and my name is Robert, so Doubting Robert came to mind.
Besides, Mr. Cynical was already taken.
In reading down through this thread, I followed the links to some of the older threads. Some of the entries seemed really strange, until I realized that when a username is changed, the new name is displayed on old posts.
Many moons ago, when a 386 was the best I could get my hands on, I was creating posters and programs for the SO’s drama group.
Well, the 386 wouldn’t render the pic scans I was using fast enuff, so I sent them into work to complete the job on a 486.
Wow, so much faster.
Well, I got sprung (caught) doing non-work at (@) work (work) and the nick has stuck.
And I still do things at work that aren’t work, although now I avoid doing it where people can see me.
www.caughtatwork.net is where you can see the other stuff that I do at work (mainly ripped off).
My handle is the name of a clingy, bloodthirsty, and unattractive middle-aged noblewoman from Gilbert and Sullivan’s Mikado. (It’s a superb part, incidentally… :D) Doesn’t really suit me, as I’m relatively young and affable, and am not what one might describe as “tough as a bone”…ah, well.
it sounds cool and confuses people.
(ynh)
It came from the story of Cain and Abel, in the Bible. Back in the days of Compuserve chat rooms, my younger brother used the name Cain, which he thought was cool and rebellious-sounding. When I got on the internet, I decided to be the better of the two brothers, and adopted the name Abel. I’ve had it for ICQ, a version of it for AIM, and all sorts of other fun uses for it. Kinda boring story, but it’s all I got.
Ha ha, good John Lennon reference, though.
Anyway, as for mine, everything else I chose was “already in use.” So I did what came naturally.