I started going to chat rooms and the such when some stuff was going on in my life that was pretty shitty and one of the first names I used was Drakane_Blood. Drakane being the poorly translated possessive form of dragon in the Czech language.
Dragons symbolize a ton of things from strength, power and wealth, to beauty and life, it all depends on the culture.
Blood is something we all have in us even if it is not always seen on the surface.
Drakanes blood, is saying I have all that dragons symbolize inside me waiting to be drawn to the surface.
I just normally drop the blood, especially since I played WoW and my main hunter was Drakane, so I was just known as that or Drak on vent no matter the toon i Played.