I hade a close friend tell me I was always a Thorn in his side. I was always a pain, and being blunt, straight forward person, I guess he was right. Then all his friends started calling me Thorn. He unfortanately passed away, but the name stuck.
This was way back when I was only 14. I started writing short stories, and peotry, but I never thought I was any good. I didn't want anyone to know who I was when I entered my peotry/stories into a few contests. Since my friend had always loved my writing I signed it as my pen name.
Slowly the named seeped into other parts of my life. It became my Magik name, my sn. So, now it's my username.
I was also called kittie, for acting slightly feline all the time, but Thorn has much more sentimental value...and...it's just...me.