a carnival performer who does disgusting acts
"The audience winced as the geek performed his act of eating live ants on stage."
a person with an unusual or odd personality
"His quirky habit of reciting poetry to pigeons made him seem like a complete geek to his neighbors."
A carnival performer specializing in bizarre and unappetizing behavior.
"The camera zoomed in to capture the geek on his face during the intense moment of discovery."
A look.
In plain English: A geek is someone who really loves and knows a lot about computers, science fiction, video games, or other specific hobbies.
"The computer geek spent all night fixing his broken monitor."
To behave geekishly or in a socially awkward manner, especially when under the influence of drugs or other psycho-active substances, and exhibiting such marked characteristics as hyperactivity, repetitiveness, talkativeness, nervousness, irritability, or paranoia.
"The curious cat would sit on its hind legs and peek out from behind the curtains to see who was visiting."
To look; to peep; to stare about intently.
In plain English: To geek means to act very excitedly and enthusiastically about something you love, usually by talking nonstop about it or showing off your knowledge.
"Don't geek out over that new video game for hours at work."
Usage: Use "geek" as a verb primarily when describing someone behaving socially awkwardly or strangely under the influence of substances, rather than for general staring or carnival performances. Avoid using it interchangeably with synonyms like "stare," which lacks this specific connotation of eccentricity and intoxication.
The word began as carnival slang for a fool around 1510, likely borrowed from British dialect that drew on Germanic roots meaning to cackle or mock. It eventually traveled into English with this sense of foolishness before evolving further in modern usage.