- a cowardly, despicable person; a craven.
Origin of yellow dog
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for yellow dog
Now the philosophical pacifists—I don't mean the cowardly, yellow-dog ones—have never quite seen the war in this aspect.The Life and Letters of Walter H. Page, Volume II
Burton J. Hendrick