flat out

Idioms & Phrases

flat out

  1. In a direct manner, bluntly. For example, He told the true story flat out. [Colloquial; mid-1900s]

  2. At top speed, as in She was running flat out to catch the train. [Slang; c. 1930]

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
Cite This Source
Explore Dictionary.com
Previous Definition: flat on one's back
Next Definition: flat-footed
Words Near: flat out
More from Thesaurus.com
Synonyms and Antonyms for flat out
More from Reference.com
Search for articles containing flat out
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2015 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature