This is a great idea!
A long long time ago, when I first met Joe we were watching Discovery channel together and it was an episode about queen bees or spiders or some such creepy animal.
The female kills the male after mating. They were referring to the female as the alpha-female. Joe began calling me AlphaFemale.
Several months later, I quit my too pressure filled job and find another with the company I am with now. For some reason I have a knack coming up with nicknames for people. The person I replaced I began to call St. Serino (because all the customers were telling me what a wonderful guy he was, how he could move mountains etc.) I was nick naming everyone (most the time behind their back, I was new you know). They decided I needed a nickname.
My immediate boss knows Joe, and we were together and Joe referred to me as Alphafemale....my boss got it wrong, and began referring to me as Alphawoman, and my other coworker woman, Alphawoman #2. He calls us 1 and 2, "Where is Number 1?" or "Where are my Alpha's?"
Anyway, its funny and I like it. So I choose it for one of my various screen names.