Monkey-wrencher

Howie Wolke, an Earth First! founder and frequent monkey-wrencher, thought "conventional tactics" and "non-violent direct action" were worthwhile techniques for environmentalists.

In reality, says one of his closest friends and an active monkey wrencher who prefers anonymity, “Ed was reporting what he saw around him. Truth be told, monkey wrenching is not even controversial in many areas of the Southwest.[…]