A derogatory term for someone who is passionate about environmental issues. Is anyone surprised that those eco-nuts in my neighborhood have taken up composting?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
See eco freak
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.