Also found in: Dictionary, Wikipedia.
a falling out
A severe quarrel or disagreement, especially one that leads to a temporary or permanent end of a relationship. I haven't spoken to my brother for nearly three years because of a falling-out we had over our late father's estate.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a disagreement. Tom and Bill had a little falling-out.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.