Dictionary
doo•dly-squat
Pronunciation: (dOOd'lē-skwot"), [key]—
n. Slang.
a minimum amount or degree; the least bit (usually used in the negative):
This coin collection isn't worth doodly-squat in today's market. Also,diddly-squat.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.