I play geek from 8-5 Monday through Friday. I hate to play geek outside of work, it amazes other IT folks in other departments that I am not glued to a computer 24/7. Work is work and play is play.
Geekdom is more than the tinkering the electronic gew-gaws we as a species have constructed of late.
It is deeply tied with a fascination of how EVERYTHING works.
That which you understand, you can control and manipulate to your own ends.