Geek Definition

gēk

geeks

noun

geeks

A person regarded as foolish, inept, or clumsy.

American Heritage

A performer of grotesque or depraved acts in a carnival, etc., such as biting off the head of a live chicken.

Webster's New World

Any person considered to be different from others in a negative or bizarre way, as a teenager seen as being socially or physically awkward.

Webster's New World

A person regarded as being especially enthusiastic, knowledgeable, and skillful, esp. in technical matters.

Webster's New World

(colloquial) A person who is intensely interested in a particular field or hobby and usually asocial. Often used with an attributive noun.

I was a complete computer geek in high school, but I get out a lot more now.

Most famous actors are really theater geeks at heart.

Wiktionary

Synonyms:

verb

To excite emotionally.

I'm geeked about that new video game.

American Heritage

(colloquial) To get high on cocaine.

Wiktionary

Other Word Forms of Geek

Singular:

geek

Plural:

geeks

From the British dialectal term geck (“fool”), from Low German Geck, from Middle Low German; The root still survives in the Dutch gek (“crazy”) and gekkie (“crazy person”).

From Wiktionary
Perhaps alteration of dialectal geck fool from Low German gek from Middle Low German

From American Heritage Dictionary of the English Language, 5th Edition
Probably related to keek; compare German gucken (“look”), kieken (“look”).

From Wiktionary