Diddly

Etymology 1
Short for diddly-squat

Noun

 * 1) a small amount of no worth

Etymology 2
Imitating a sound

Interjection

 * 1) A written representation of a trill sound.
 * 2) * 1993, Hugh Hood, Be sure to close your eyes: a novel
 * On the handcar mornings or evenings he would amuse his companion by pumping away to a triple-tongued pattern, which he would hum emphatically as they rolled along: "dum diddly diddly diddly diddly diddly diddly dee dee-dum dum diddly diddly diddly diddly diddly diddly dee..."
 * 1) * 2005, Gordon Giltrap, Total Giltrap: Guitar Encounters of the Fingerstyle Kind
 * ...When combined with the following picked note, this gives a rhythmic 'diddly-dum' effect.
 * 1) * 2008, Kristie Theobald, Irish Angels
 * It's easy enough for him to go “diddly-diddly-diddly-dum” a thousand and one times, whereas with me it's “diddly-diddly-diddly- omigodIcan'tbreathe-dum!”)