BLA5TER is an ancient Sanscrit word that roughly translates like this
BLA - Man
5 - With
TER- Elephant Junk
So as you can see (or maybe you've heard) this was the perfect IGN for me ^^
Seriously though, I was a big Transformers nut when I was younger and Blaster was one of my all-time favs (the Dino-bots and Blur are close seconds). My original ign was Blaster112 but I decided that I wanted something with less numbers: hence the name change.