A girl that you would fuck or "do".
That new Tina chick at our school is pretty hot, I'd say she's a diddly do.
it means 'Nothing' as a definition, but
it is THE emo-est word EVER.
(when used with the right context)
As I slit my wrists, I cannot imagine the diddly squat that lay at the end of the dark tunnel that is my life.
when you are p diddy and you act p diddly
Guy 1: Hey bro!
Guy 2: Hey, you lookin' p diddly
Squatting to poop, like in the woods
Oh man I just diddly squatted in the woods
The sound made when violently excreting fluid from the anus into a toilet; a condition encountered when one has diarrhea.
"After I got home from eating at the new Mexican restaurant downtown, I had to run to the bathroom because I came down with a case of the screaming diddlies!"
The act of farting after your girlfriend has prolapsed your asshole by violently finger-banging you. Due to the amount of anal swelling the gaseous pressure builds up until it is released in a single, explosive puff.
Similar to the Whistling Kanye or the Breezy Yeezy.
My Puff Diddly looked like Yellowstone erupting.
"I cannot do diddly squat without hearing all these leftists complain about something new every hour