geek [geek] Slang.
1. a digital-technology expert or enthusiast (a term of pride as self-reference, but often used disparagingly by others).
2. a person who has excessive enthusiasm for and some expertise about a specialized subject or activity: a foreign-film geek.
3. a peculiar person, especially one who is perceived to be overly intellectual, unfashionable, or socially awkward.
4. a carnival performer who performs sensationally morbid or disgusting acts, as biting off the head of a live chicken.
verb (used without object)
5. to be overexcited about a specialized subject or activity, or to talk about it with excessive enthusiasm (usually followed by out): I could geek out about sci-fi for hours.
Origin: 1915- 20; probably variant of geck (mainly Scots) fool < Dutch or Low German gek
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