1. A knowledgeable and obsessive computer enthusiast
   "The company hired a team of geeks to develop their new software"
    
2. Someone who is very knowledgeable and enthusiastic (or obsessive) about a specific subject
   "a policy geek";
   - wonk [informal]
    
3. A person with an unusual or odd personality
   "they're a bunch of geeks, but quite nice really";
   - eccentric, flake [N. Amer, informal], oddball [informal], dag [Austral, NZ, informal]
    
4. [N. Amer, informal] A carnival performer who does disgusting acts
   "The sideshow geek shocked audiences by biting the heads off live chickens"

1. To be especially excited about something relatively unpopular
   "He geeked out over the new sci-fi movie";
   - geek out [informal]

Derived forms: geeking, geeks, geeked

Type of: actor, delight, doer, enjoy, performer, performing artist, revel, worker

Encyclopedia: Geek