What does your username mean?

Hey there.
I came up with this idea on another forum awhile back, so thought to post it on here as well.
So, what's the meaning behind your username?
My username is from the Latin word for Iron,"Ferrum", and made into a fake lastname because, reasons! And 666 was added there because, reasons! Ok maybe that one is from the Iron maiden song The number of the beast but I'm not really sure what actually got me to put it in there.
So, what's the meaning behind your username?

I chose the username radio729 because I love radio and 729 comes from the month and day that I was born.

My username is Radiorobbe, which translates to "radio seal" in english. The story behind started almost 10 years ago when I first met some friends who liked to have some kind of animal avatars. One was a duck, the other a penguin and so on. They thought it would be a good idea to create an avatar for me too. I can't remember exactly why a seal was choosen, but at last the radio seal was born. I'm hosting radio shows, so the second part is quite self-explanatory.

My username is Paulinuxx, why two xes? Because i had old account Paulinux and forgot password, and must create a new account. So I am Paulina and love Linux, so I'm Paulinux :)

My username is a random nickname my older sisters came up with, as I have said in my visiting card. Anyway, I found that to be a cool username. On Klango, I just was Karleick, first and last name as one word, and I feel now that's kind of boring.

derick is a character from a german t v show. inspector derrick. I'm not german but it has ben shown in Belgium where I am origanlly from.

my name

Hi all,
means of my name is tsunami
.
:D
.

Reason:
I like the water and I marvel at power of the tsunami.

I opt for SonicHedgehog for the concept of flying through the UI of programs, taking time to explore hidden territory (maybe I'll stumble across a feature I've never used?), maybe just stroll through memory land in one or two programs that defined me at a younger age.
There's something in speed and efficiency that most sighted useers loving using their cheese-loving mice really don't understand when a keyboard ninja's in the room doing the same taks they do, seemingly like lightning?
Yup, I'm proud to be one!
Yo, you little miouse; Get the cluck away from me;
Never mind, I'll just smash you open like a monitor in the popular video game franchise...

I just used my nickname.

well my username is strowbery but corect type is strawbery. Why strawbery? Becouse I like strawberies

wel I am a monkey because I like to clime I like bananas and my fotter gave me this nickname when I was 5 yearls or so.

wooooow nice I like also bananas heh

my username is a mix between my real names

My user name is "Railwayguy" because I just love trains and anything that has to do with trains. In Klango, I had the user name "Kelsey".

the way i got destructatron is kind of a funny one. so i was on tk, and there were all these nicknames of tron going around. ultron, electron etc. so i thought, hey why not destructatron since i like destroying things, i guess that's stuck now lol

Well mine is simple, I know a polish DJ called Arctic Moon. His music is good, but his name is better though and Arctic moon means something so, ehm how to say, it's just nice, that's why I picked this one. :D

i am known as stasp in lot of places, but i am die here just because i had 100000000000000 accounds here so i thoud i have no idea how to name my self.
Ok, die is a word thats in my hed so i wil use it, dont remember what i was actually thinging then but probably something like that

my name literally means nothing. I was listening to music at the time when I made my reddit account with this name and it just sort of stuck for anything social.