Didly Squat 

To do nothing, to have nothing

David Pryordoes didly squat after he gets home from school everyday.

Didly Squat by David pryor April 1, 2003

diddly squat

nothing

You know diddly squat about anything.

diddly squat by Anonymous June 16, 2003

jack diddly squat 

the equivelent of nothing; something that amounts to nothing

Vikings aint got jack diddly squat on ninjas!

jack diddly squat by ninjamann13 June 26, 2007

diddly squat

diddly squat ain’t but nuthin’ at all

I had DIDDLY SQUAT to do with selling all that gay pornography to those terrorists!

diddly squat by BillieJeanIsNotMyLover August 19, 2019

didley squat 

absolutely nothing

My two lazy children have been up to didley squat all day long!

didley squat by retired hot momma August 16, 2009

diddly-squat 

a cuter way of saying f* sweet all nothing

when you father was an engineering student, and you are in a private high school and playing guitar in the music band, if you are not a talented a carrot in god's potato field, you have done diddly-squat with your private education.

diddly-squat by Uncle Dimma December 11, 2014

Diddly squat

A unit of currency, worth a predicted £525m a week after brexit.

According to Boris Johnson, one Diddly Squat will be worth £525m per week after Brexit.

Diddly squat by Thrifty Amoeba September 3, 2018