Exceptionally enthusiastic, eager, or zealous, sometimes overly so. There are plenty of pitfalls that gung-ho entrepreneurs don't stop to consider. I was all gung-ho about this graduate program when I first began, but I must admit that I've grown sick and tired of these boring lectures.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
Inf. enthusiastically in favor of something. Bobby is really gung ho on his plan to start his own company.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
Also, gung-ho. Extremely enthusiastic or dedicated, as in She was gung ho about her new job. This expression was introduced in 1942 as a training slogan for a U.S. Marine battalion, derived from what an American officer thought were Mandarin Chinese words for "work together." It was actually an abbreviation for the name of Chinese industrial cooperatives.
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
mod. zealous; enthusiastic. We’re really gung-ho about the possibilities of this product.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
Very enthusiastic, dedicated to the task at hand; also, overzealous. The term, also spelled gung ho, comes from a Chinese phrase meaning “work together,” adopted as the name for small producer cooperatives organized in the late 1930s to help the Chinese economy during the Chinese-Japanese war. The term was then adopted by Marine Lieutenant Evans F. Carlson for his battalion of volunteers, Carlson’s Raiders, formed just after Pearl Harbor. In 1943 a war movie dramatizing one of the Raiders’ early victories was entitled Gung Ho! and the term caught on. In the military, however, it also came to be applied to an offensively ardent follower of rules and regulations. Richard Martin Stern had an early civilian usage, “In those days he was very gung ho for National Socialism” (The Kesssler Legacy, 1968).
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer