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1. Ecstacy pills.
"You got any diddilies mate?"
by parkbenchbum August 14, 2008
Little sugary multi coloured strands also known as hundreds and thousands that go ontop of ice-cream, jelly and rice crispie buns.
Can I have diddilies on mine please.
by Ruth 19 August 03, 2007
Anything and/or Nothing
Saying you do whatever, you see me and don't do Diddily
by It's Avenir Pimpin' June 08, 2011