Double Diddle 

A double diddle is when two men rub the tips of their penises together, usually fast and sometimes violently.

I heard that Mike and Joe did a double diddle last night.

Double Diddle by Horse_Fondler November 14, 2017

Double Diddle 

To masturbate with both hands.

"I asked her to send me a pic where she's diddling herself, and she told me she wouldn't have a free hand."
" Oh, she must double diddle."

Double Diddle by sangreazul July 21, 2016

double diddely 

another word for awesome or amazing.

I had a double diddely day! (gay right?)...but it works!

double diddely by Stacy... November 10, 2008