AskDefine | Define grok

User Contributed Dictionary



Coined by Robert A. Heinlein in his novel Stranger in a Strange Land in which the word described as being from the word for to drink and, figuratively, "to drink in all available aspects of reality", "to become one with the observed" in Heinlein's fictitious Martian language.


  • a US /gɹɑk/


  1. In the context of "transitive|slang": To have an intuitive understanding of; to know (something) without having to think (such as knowing the number of objects in a collection without needing to count them).
  2. In the context of "transitive|slang": To fully and completely understand something in all its details and intricacies.
    He groks Perl.

Usage notes

  • Grok is used mainly by the geek subculture, though it was heavily used by the counterculture of the 1960s, as evidenced by its repeated appearance in Tom Wolfe's "The Electric Kool-Aid Acid Test."


to have an intuitive understanding
  • Italian: groccare
  • Russian: грокать , грокнуть
to fully understand
  • Italian: groccare
  • Russian: грокать , грокнуть

See also

Extensive Definition

To grok () is to share the same reality or line of thinking with another physical or conceptual entity. In Heinlein's view of quantum theory, grokking is the intermingling of intelligence that necessarily affects both the observer and the observed.
As first used in the Heinlein novel Stranger in a Strange Land: The Oxford English Dictionary defines grok as "to understand intuitively or by empathy; to establish rapport with" and "to empathize or communicate sympathetically (with); also, to experience enjoyment." Other forms of the word include "groks" (present third person singular), "grokked" (past participle) and "grokking" (present participle).
In an ideological context, a grokked concept becomes part of the person who contributes to its evolution by improving the doctrine, perpetuating the myth, espousing the belief, adding detail to the social plan, refining the idea or proofing the theory.


Stranger in a Strange Land

Robert A. Heinlein originally coined the term grok in his 1961 novel Stranger in a Strange Land as a Martian word that literally means "to drink", and had a much more profound figurative meaning that is hard for Earthlings to understand because of our assumption of a singular reality.
According to the book, drinking is a central focus on Mars where water is scarce. Martians use the merging of their bodies with water as a simple example or symbol of how two entities can combine to create a new reality greater than the sum of its parts. The water becomes part of the drinker, and the drinker part of the water. Both grok each other. Things that once had separate realities become entangled in the same experiences, goals, history, and purpose. Within the book, the statement of divine immanence verbalized between the main characters, "Thou Art God", is logically derived from the concept inherent in the term grok.
Heinlein describes Martian words as "guttural" and "jarring". Martian speech is described as sounding "like a bullfrog fighting a cat". Accordingly, grok is generally pronounced as a guttural "gr" terminated by a sharp "k" with very little or no vowel sound (a narrow IPA transcription might be [ɡɹ̩kʰ]).

In counterculture

Tom Wolfe, in his book The Electric Kool-Aid Acid Test, describes a character's thoughts during an acid trip: "He looks down, two bare legs, a torso rising up at him and like he is just noticing them for the first time... he has never seen any of this flesh before, this stranger. He groks over that...."
Contemporary spiritual teacher Ram Dass, in Be Here Now, quotes a large passage from Stranger about the word.
Numerous examples of its use in the late 1960s appear, including in Playboy Magazine and The New Yorker.
The word is also used in passing in The Illuminatus Trilogy by Robert Anton Wilson and Robert Shea, and frequently by Wilson in his other work.
According to Ed Sanders' book The Family, convicted murderer Charles Manson was a fan of Heinlein and Stranger and adopted many of the terms associated with both including "grok" and "thou art God".

In science fiction

A popular t-shirt and bumper sticker slogan for Trekkies, seen as early as 1968, was I grok Spock (often showing the Star Trek character using the Vulcan salute). Other science fiction authors, such as David Brin or Greg Cox, have borrowed the term over the years as an homage.

In hacker culture

Uses of the word in the decades after the 1960s are more concentrated in computer culture, such as a 1984 appearance in InfoWorld: "There isn't any software! Only different internal states of hardware. It's all hardware! It's a shame programmers don't grok that better."
The Jargon File, which describes itself as a "Hacker's Dictionary" and has thrice been published under that name, puts grok in a programming context:
When you claim to ‘grok’ some knowledge or technique, you are asserting that you have not merely learned it in a detached instrumental way but that it has become part of you, part of your identity. For example, to say that you “know” Lisp is simply to assert that you can code in it if necessary — but to say you “grok” LISP is to claim that you have deeply entered the world-view and spirit of the language, with the implication that it has transformed your view of programming. Contrast zen, which is a similar supernatural understanding experienced as a single brief flash.
The entry existed in the very earliest forms of the Jargon File, dating from the early 1980s. A typical tech usage from the Linux Bible, 2005 characterizes the Unix software development philosophy as "one that can make your life a lot simpler once you grok the idea".

Mainstream usage

In their book The Fourth Turning, William Strauss and Neil Howe write of 1996 Presidential candidate Bob Dole as "not a person who could grok values in the now-dominant Boomer tongue".
Groklaw is a website with information on legal matters, usually of an IT nature.
Grok is a web application framework, written in the Python programming language and based on Zope 3.
In a 1987 Life In Hell strip titled "What I Learned In School", a character representing "The Simpsons" creator Matt Groening is depicted being dressed down by an unseen "hip" college professor: "Mr. Gru-nink, I'm getting bad vibes from you. The rest of the class groks what is going on -- why can't you?"
Songwriter Stephin Merritt uses the word "grok" in the song "Swinging London", from the 1994 Magnetic Fields album "Holiday" - "you couldn't grok my race car but you dug the roadside blur".
Berkeley Groks is a science radio show that uses the term in their name.
The name of a commercial federated search engine, grokker.
In an episode of the television show "Silver Spoons" in 1985, Rickie calls chatting on a BBS "grokking".


External links

grok in Italian: Grok
grok in Dutch: Grokken
grok in Norwegian: Grok
grok in Portuguese: Grokar
grok in Swedish: Grokka
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