Dorks, Nerds and Geeks
Me, I like my words to have specific meanings.
It's not that I always USE my words with great specificity... but I like to have that option, in case someone decides to pull apart my point of view with tweezers, take me to task, get down and dirty and semantic. It's happened from time to time, and it's good to be prepared.
I bring it up because there are three words that I think are in a state of sad disrepair. Dork, Nerd, and Geek.