look up any word, like yeet:
 
1.
nothing
You know diddly squat about anything.
by Anonymous June 16, 2003
 
2.
Not in the least bit.
I don't care diddlysquat 'bout them ol' high and mighty folks.
by Hercolena Oliver August 28, 2008
 
3.
Literally means "chicken shit".
Those shiny cars won't mean diddly squat when you die.
by The JDawg May 13, 2007
 
4.
Squatting to poop, like in the woods
Oh man I just diddly squatted in the woods
by Alex Smith March 25, 2005
 
5.
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.
by smexy November 23, 2005