Hmm, beyond cruel names that people have called me I don't really know of many nicknames.. possibly:
Toe-Thumbs: because of my clubbed thumbs
Muffin Man: This one followed me through primary school as in the first school play i was the muffin man and had to ring a bell while singing "here I am the muffin man". I hear I was cute back in the 80s
My online handle tends to be buildmaster due to my first job in dev which involved me learning something called CruiseControl and Nant and getting a project building in it. which lead to me owning the build process and becoming the buildmaster.
I'm generally just known as O