http://www.google.co.uk/search?q=define%3Ageek
I'm going to agree mostly with 2 and 3. To me, a geek is someone who knows too much in a particular field, normally regarding computers and/or science in some way. See The Big Bang Theory and The IT Crowd.
Anyone else?
I don't know now.
I'm getting all confused.
A geek is someone most folks work for someday!!!
Does that mean I'm going to be World King? 
Aw, zooo's got a pretty post count.
My personal definition.
1. Geek doesn't interact well socially.
2. Geek has too much knowledge of a field - because they spend their time learning instead of socialising.
3. Geek does not care about fashion or looking good.
Ok, I'm definitely a geek.
(Although #3 does almost worry me on occasion, but I've long since learnt that it's futiile to try.)
Are you wearing your tank top next week Aaron?
Quote: Aaron @ November 22 2008, 3:32 PM GMTOk, I'm definitely a geek.
(Although #3 does almost worry me on occasion, but I've long since learnt that it's futiile to try.)
And gramatically surely that is incorrect. It should be "on occasions" or "occasionally."
Quote: David Chapman @ November 22 2008, 4:09 PM GMTAnd gramatically surely that is incorrect. It should be "on occasions" or "occasionally."
I would say on occasion or occasionally.
grammatically*
And no, I don't have one. That's more nerd-y.
They almost always wear glasses and LOOK 'geeky'.
Can't think of any examples right now.. 
Quote: Moonstone @ November 22 2008, 3:26 PM GMTMy personal definition.
1. Geek doesn't interact well socially.
2. Geek has too much knowledge of a field - because they spend their time learning instead of socialising.
3. Geek does not care about fashion or looking good.
I think I'd modify those slightly because:
1) Geeks interact fine with other geeks.
2) It's knowledge of a field the majority finds unappealing - knowing a lot about Star Trek and dressing as Captain Kirk is geeky; knowing a lot about football and dressing as David Beckham isn't.
3) Yeah, you're probably right on that one.
Quote: Moonstone @ November 22 2008, 3:26 PM GMTMy personal definition.
1. Geek doesn't interact well socially.
2. Geek has too much knowledge of a field - because they spend their time learning instead of socialising.
3. Geek does not care about fashion or looking good.
That's intriguingly close to a diagnosis of autism.
I'd say anyone who spent 2 hours creating and sorting a household chore list for himself in Excel and then put all the information in Google Calendar was a geek. But of course I don't know anyone who has done such a thing.
Weirdly I have all the obsessiveness and lousy social skills of geekdom, but no organisational skills.
You can be geeky about things that aren't usually considered to be geeky, e.g. I'm a bit geeky about music and sport, oh, and of course, comedy.