From Wikipedia, the free encyclopedia The word geek is a slang term, with different meanings ranging from "a computer expert or enthusiast" to "a carnival performer who performs sensationally morbid or disgusting acts", with a general pejorative meaning of "a peculiar or otherwise dislikable person, esp[ecially] one who is perceived to be overly intellectual".[1] This word comes from English dialect geek, geck: fool, freak; from Low German geck, from Middle Low German.