The word geek is a slang term originally used to describe eccentric or non-mainstream people; in current use, the word typically connotes an expert or enthusiast obsessed with a hobby or intellectual pursuit.
What it means to be a geek?
Noun. Slang. A person whose interests ALWAYS take precedence over popularity or conformity. A person who displays the willingness to bear the public shame of liking some weird thing and not caring who knows it.
What is an example of a geek?
An example of a geek is a person who has fun spending his entire day figuring out how computers work. An example of a geek is a person who has a genius IQ but is very uncomfortable in social settings. A carnival performer whose show consists of bizarre acts, such as biting the head off a live chicken.