definition
A carnival performer specializing in bizarre and unappetizing behavior.
example
I once saw a geek bite the head off a live chicken.
definition
A person who is intensely interested in a particular field or hobby and often having limited or nonstandard social skills. Often used with an attributive noun.
example
I was a complete computer geek in high school, but I get out a lot more now.
definition
(by extension) An expert in a technical field, particularly one having to do with computers.
example
Do you need a hardware geek or a software geek?
definition
The subculture of geeks; an esoteric subject of interest that is marginal to the social mainstream; the philosophy, events, and physical artifacts of geeks; geekness.
definition
An unfashionable or socially undesirable person.
example
Why do you hang around with them? They’re just geeks.