I stole my username from an album by Black/Viking Metal band, Windir.
Edit:
Most of my friends at school call me Chicken, Chicky, or Chickie D. Sometimes there were people who didn't even know my real name, as I'm not the most sociable person in my circle, so my friends introduced me to others using my nickname.
It was a self-given nickname that dated back to sixth grade where I made a stab at self-deprecating racist humour by proclaiming "Well, I am a CHINESE CHICKEN!". It was a riot and it has stuck well all these years, though we eventually dropped the "Chinese" part of it because my family is actually mostly Vietnamese.