Sentence:  There had been a long running dislike between Rankin and Grabinsky; neither cut the other any slack. "Listen you little <WSD>tweeb</WSD>, I don't care if he's in the shower -- in bed with his wife -- or taking a crap; put me through to the President NOW!! 
Meaning of the word marked with <WSD> tags:  A person who does technical work, especially one who is annoying or socially awkward.