Hayduke is a term and verb used among environmental

Environmentalism

Environmentalism is a broad philosophy, ideology and social movement regarding concerns for environmental conservation and improvement of the health of the environment, particularly as the measure for this health seeks to incorporate the concerns of non-human elements...

 activists and people who cite cult "revenge" books. It is the name of George Washington Hayduke, a fictional character

Fictional character

A character is the representation of a person in a narrative work of art . Derived from the ancient Greek word kharaktêr , the earliest use in English, in this sense, dates from the Restoration, although it became widely used after its appearance in Tom Jones in 1749. From this, the sense of...

 based on Edward Abbey

Edward Abbey

Edward Paul Abbey was an American author and essayist noted for his advocacy of environmental issues, criticism of public land policies, and anarchist political views. His best-known works include the novel The Monkey Wrench Gang, which has been cited as an inspiration by radical environmental...

's friend Doug Peacock

Doug Peacock

Doug Peacock is an American naturalist, outdoorsman, and author. He is best known for his book Grizzly Years: In Search of the American Wilderness, a memoir of his experiences in the 1970s and 1980s, much of which was spent alone in the wilderness of the western United States observing grizzly...

 in Abbey's cult classics The Monkey Wrench Gang

The Monkey Wrench Gang

The Monkey Wrench Gang is a novel written by American author Edward Abbey , published in 1975.Easily Abbey's most famous fiction work, the novel concerns the use of sabotage to protest environmentally damaging activities in the American Southwest, and was so influential that the term "monkeywrench"...

and Hayduke Lives!. The Hayduke character personified the "no compromise in defense of the Earth" approach to environmentalism, made real in early Earth First!

Earth First!

Earth First! is a radical environmental advocacy group that emerged in the Southwestern United States in 1979. It was co-founded on April 4th, 1980 by Dave Foreman, Mike Roselle, Howie Wolke, and less directly, Bart Koehler and Ron Kezar....

 activism.

A complete series of revenge books using the pseudonym

Pseudonym

A pseudonym is a name that a person assumes for a particular purpose and that differs from his or her original orthonym...

 George Hayduke

George Hayduke (author)

George Hayduke is believed to be a pen-name based on the character George Washington Hayduke III, created by Edward Abbey in his 1975 book The Monkey Wrench Gang, and 1990 book Hayduke Lives. Often in collaboration with perhaps equally pseudonymous co-author M. Nelson Chunder, Hayduke has authored...

 exist, mostly published by the Paladin Press

Paladin Press

Paladin Press is a book publishing firm founded in 1970 by Peder Lund and Robert K. Brown.The company publishes non-fiction books and videos covering a wide range of specialty topics, including personal and financial freedom, survivalism and preparedness, firearms and shooting, various martial...

, including The Big Book of Revenge, Get Even, Make 'Em Pay, Up Yours and Screw Unto Others. Each describe various methods of committing mischief and mayhem against those who have wronged others in a manner reminiscent of The Anarchist's Cookbook. "Haydukery" refers to committing such acts in general.