anything at all or of any consequence: doesn't know diddly about computers
trivial, unimportant, etc.
Also sp. did′dley
A small or worthless amount: His advice wasn't worth diddly to me.
Origin of diddlyShort for diddlyshit ; see diddly-squat .
Short for diddly-squat
- A written representation of a trill sound.
Imitating a sound
- (slang, sometimes childish) penis
Possibly shortened from diddlywhacker.