barnburner definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Slang something, esp. a closely contested sports event, that is very exciting, intense, dramatic, etc.
barnburner definition by American Heritage Dictionary
An extremely impressive event or successful outcome: “September will not be any barnburner [for car sales]” (Lee Iacocca).