Definition of "diddly" [diddly]

• Slang A small or worthless amount: His advice wasn't worth diddly to me. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Not to acknowledge the brutal component of slavery as the central issue in the American Civil War and for you to state that the omission amounts to 'diddly'; is a lot like the Nazi's refusing to acknowledge the holocaust."
• "Haley Barbour's "diddly" characterization (April 12 article, "Barbour: Confederacy flap not worth 'diddly'") is a blithe dismissal of even the mention of slavery when the "noble heritage of the Confederacy" is memorialized."
• "Slavery was "diddly" indeed ... just how many northern Republicans, the party of Lincoln, men died to keep the Union together?"